23140697 has 4 divisors (see below), whose sum is σ = 23237760. Its totient is φ = 23043636.

The previous prime is 23140693. The next prime is 23140699. The reversal of 23140697 is 79604132.

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 23140697 - 2² = 23140693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23140693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48173 + ... + 48650.

It is an arithmetic number, because the mean of its divisors is an integer number (5809440).

Almost surely, 2^23140697 is an apocalyptic number.

It is an amenable number.

23140697 is a deficient number, since it is larger than the sum of its proper divisors (97063).

23140697 is an equidigital number, since it uses as much as digits as its factorization.

23140697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97062.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23140697 is about 4810.4778348933. The cubic root of 23140697 is about 284.9654087493.

The spelling of 23140697 in words is "twenty-three million, one hundred forty thousand, six hundred ninety-seven".