142256903597 has 4 divisors (see below), whose sum is σ = 142264149216. Its totient is φ = 142249657980.

The previous prime is 142256903561. The next prime is 142256903629. The reversal of 142256903597 is 795309652241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142256903597 - 2¹⁸ = 142256641453 is a prime.

It is a super-4 number, since 4×142256903597⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142256903197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593279 + ... + 3632652.

It is an arithmetic number, because the mean of its divisors is an integer number (35566037304).

Almost surely, 2^142256903597 is an apocalyptic number.

It is an amenable number.

142256903597 is a deficient number, since it is larger than the sum of its proper divisors (7245619).

142256903597 is an equidigital number, since it uses as much as digits as its factorization.

142256903597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245618.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 142256903597 in words is "one hundred forty-two billion, two hundred fifty-six million, nine hundred three thousand, five hundred ninety-seven".