97142131 has 8 divisors (see below), whose sum is σ = 105636960. Its totient is φ = 88956288.

The previous prime is 97142119. The next prime is 97142147. The reversal of 97142131 is 13124179.

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

It is a de Polignac number, because none of the positive numbers 2^k-97142131 is a prime.

It is a super-2 number, since 2×97142131² = 18873187230442322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97142131.

It is not an unprimeable number, because it can be changed into a prime (97148131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76591 + ... + 77848.

It is an arithmetic number, because the mean of its divisors is an integer number (13204620).

Almost surely, 2^97142131 is an apocalyptic number.

97142131 is a deficient number, since it is larger than the sum of its proper divisors (8494829).

97142131 is a wasteful number, since it uses less digits than its factorization.

97142131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154493.

The product of its digits is 1512, while the sum is 28.

The square root of 97142131 is about 9856.0707688206. The cubic root of 97142131 is about 459.6943953127.

The spelling of 97142131 in words is "ninety-seven million, one hundred forty-two thousand, one hundred thirty-one".