23491260137 has 8 divisors (see below), whose sum is σ = 24350811840. Its totient is φ = 22635009040.

The previous prime is 23491260131. The next prime is 23491260167. The reversal of 23491260137 is 73106219432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23491260137 is a prime.

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 23491260137.

It is not an unprimeable number, because it can be changed into a prime (23491260131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810653 + ... + 839130.

It is an arithmetic number, because the mean of its divisors is an integer number (3043851480).

Almost surely, 2^23491260137 is an apocalyptic number.

It is an amenable number.

23491260137 is a deficient number, since it is larger than the sum of its proper divisors (859551703).

23491260137 is a wasteful number, since it uses less digits than its factorization.

23491260137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650303.

The product of its (nonzero) digits is 54432, while the sum is 38.

Adding to 23491260137 its reverse (73106219432), we get a palindrome (96597479569).

The spelling of 23491260137 in words is "twenty-three billion, four hundred ninety-one million, two hundred sixty thousand, one hundred thirty-seven".