142507725 has 24 divisors (see below), whose sum is σ = 240064992. Its totient is φ = 74568000.

The previous prime is 142507709. The next prime is 142507853. The reversal of 142507725 is 527705241.

It is not a de Polignac number, because 142507725 - 2⁴ = 142507709 is a prime.

It is a super-3 number, since 3×142507725³ (a number of 25 digits) contains 333 as substring.

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, 13951 + ... + 21900.

It is an arithmetic number, because the mean of its divisors is an integer number (10002708).

Almost surely, 2^142507725 is an apocalyptic number.

142507725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142507725 is a deficient number, since it is larger than the sum of its proper divisors (97557267).

142507725 is a wasteful number, since it uses less digits than its factorization.

142507725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35917 (or 35912 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 142507725 is about 11937.6599465724. The cubic root of 142507725 is about 522.3314016901.

The spelling of 142507725 in words is "one hundred forty-two million, five hundred seven thousand, seven hundred twenty-five".