65231097 has 4 divisors (see below), whose sum is σ = 86974800. Its totient is φ = 43487396.

The previous prime is 65231093. The next prime is 65231107. The reversal of 65231097 is 79013256.

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 65231097 - 2² = 65231093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65231093) 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, 10871847 + ... + 10871852.

It is an arithmetic number, because the mean of its divisors is an integer number (21743700).

Almost surely, 2^65231097 is an apocalyptic number.

It is an amenable number.

65231097 is a deficient number, since it is larger than the sum of its proper divisors (21743703).

65231097 is a wasteful number, since it uses less digits than its factorization.

65231097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21743702.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 65231097 is about 8076.5770596212. The cubic root of 65231097 is about 402.5485136282.

The spelling of 65231097 in words is "sixty-five million, two hundred thirty-one thousand, ninety-seven".