142381525 has 24 divisors (see below), whose sum is σ = 207424224. Its totient is φ = 95582400.

The previous prime is 142381517. The next prime is 142381537. The reversal of 142381525 is 525183241.

142381525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142381525 - 2³ = 142381517 is a prime.

It is a super-2 number, since 2×142381525² = 40544997322651250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16339 + ... + 23488.

It is an arithmetic number, because the mean of its divisors is an integer number (8642676).

Almost surely, 2^142381525 is an apocalyptic number.

It is an amenable number.

142381525 is a deficient number, since it is larger than the sum of its proper divisors (65042699).

142381525 is a wasteful number, since it uses less digits than its factorization.

142381525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39861 (or 39856 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 142381525 is about 11932.3729827725. The cubic root of 142381525 is about 522.1771698388.

The spelling of 142381525 in words is "one hundred forty-two million, three hundred eighty-one thousand, five hundred twenty-five".