97112143 has 4 divisors (see below), whose sum is σ = 102824640. Its totient is φ = 91399648.

The previous prime is 97112131. The next prime is 97112159. The reversal of 97112143 is 34121179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97112143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97112443) 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, 2856223 + ... + 2856256.

It is an arithmetic number, because the mean of its divisors is an integer number (25706160).

Almost surely, 2^97112143 is an apocalyptic number.

97112143 is a deficient number, since it is larger than the sum of its proper divisors (5712497).

97112143 is a wasteful number, since it uses less digits than its factorization.

97112143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712496.

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

The square root of 97112143 is about 9854.5493555007. The cubic root of 97112143 is about 459.6470875375.

The spelling of 97112143 in words is "ninety-seven million, one hundred twelve thousand, one hundred forty-three".