142503040 has 64 divisors (see below), whose sum is σ = 358632000. Its totient is φ = 53996544.

The previous prime is 142502981. The next prime is 142503047. The reversal of 142503040 is 40305241.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 142502999 and 142503017.

It is not an unprimeable number, because it can be changed into a prime (142503047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6301 + ... + 18019.

It is an arithmetic number, because the mean of its divisors is an integer number (5603625).

Almost surely, 2^142503040 is an apocalyptic number.

142503040 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 142503040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179316000).

142503040 is an abundant number, since it is smaller than the sum of its proper divisors (216128960).

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

142503040 is a wasteful number, since it uses less digits than its factorization.

142503040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11757 (or 11745 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 142503040 is about 11937.4637172223. The cubic root of 142503040 is about 522.3256776743.

Adding to 142503040 its reverse (40305241), we get a palindrome (182808281).

The spelling of 142503040 in words is "one hundred forty-two million, five hundred three thousand, forty".