142254520 has 32 divisors (see below), whose sum is σ = 336920400. Its totient is φ = 53906688.

The previous prime is 142254499. The next prime is 142254523. The reversal of 142254520 is 25452241.

142254520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142254523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92829 + ... + 94348.

Almost surely, 2^142254520 is an apocalyptic number.

142254520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142254520 is an abundant number, since it is smaller than the sum of its proper divisors (194665880).

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

142254520 is a wasteful number, since it uses less digits than its factorization.

142254520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187207 (or 187203 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 142254520 is about 11927.0499286286. The cubic root of 142254520 is about 522.0218621418.

The spelling of 142254520 in words is "one hundred forty-two million, two hundred fifty-four thousand, five hundred twenty".