31541245197 has 32 divisors (see below), whose sum is σ = 52455029760. Its totient is φ = 16377928320.

The previous prime is 31541245189. The next prime is 31541245199. The reversal of 31541245197 is 79154214513.

It is not a de Polignac number, because 31541245197 - 2³ = 31541245189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31541245199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524254 + ... + 581312.

It is an arithmetic number, because the mean of its divisors is an integer number (1639219680).

Almost surely, 2^31541245197 is an apocalyptic number.

It is an amenable number.

31541245197 is a deficient number, since it is larger than the sum of its proper divisors (20913784563).

31541245197 is a wasteful number, since it uses less digits than its factorization.

31541245197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59473.

The product of its digits is 151200, while the sum is 42.

The spelling of 31541245197 in words is "thirty-one billion, five hundred forty-one million, two hundred forty-five thousand, one hundred ninety-seven".