142031897697 has 8 divisors (see below), whose sum is σ = 191113257280. Its totient is φ = 93819234960.

The previous prime is 142031897663. The next prime is 142031897701. The reversal of 142031897697 is 796798130241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142031897697 - 2⁷ = 142031897569 is a prime.

It is a super-2 number, since 2×142031897697² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142031897617) 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, 217173829 + ... + 217174482.

It is an arithmetic number, because the mean of its divisors is an integer number (23889157160).

Almost surely, 2^142031897697 is an apocalyptic number.

It is an amenable number.

142031897697 is a deficient number, since it is larger than the sum of its proper divisors (49081359583).

142031897697 is a wasteful number, since it uses less digits than its factorization.

142031897697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434348423.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 142031897697 in words is "one hundred forty-two billion, thirty-one million, eight hundred ninety-seven thousand, six hundred ninety-seven".