142202520 has 128 divisors (see below), whose sum is σ = 476625600. Its totient is φ = 37711872.

The previous prime is 142202519. The next prime is 142202527. The reversal of 142202520 is 25202241.

142202520 is a `hidden beast` number, since 142 + 2 + 0 + 2 + 520 = 666.

142202520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142202493 and 142202502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142202527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381054 + ... + 381426.

Almost surely, 2^142202520 is an apocalyptic number.

142202520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142202520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238312800).

142202520 is an abundant number, since it is smaller than the sum of its proper divisors (334423080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142202520 is a wasteful number, since it uses less digits than its factorization.

142202520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 142202520 is about 11924.8698106101. The cubic root of 142202520 is about 521.9582474202.

Adding to 142202520 its reverse (25202241), we get a palindrome (167404761).

The spelling of 142202520 in words is "one hundred forty-two million, two hundred two thousand, five hundred twenty".