23175994129 has 4 divisors (see below), whose sum is σ = 23323612084. Its totient is φ = 23028376176.

The previous prime is 23175994123. The next prime is 23175994133. The reversal of 23175994129 is 92149957132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5346534400 + 17829459729 = 73120^2 + 133527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23175994129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23175994123) 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 3 ways as a sum of consecutive naturals, for example, 73808742 + ... + 73809055.

It is an arithmetic number, because the mean of its divisors is an integer number (5830903021).

Almost surely, 2^23175994129 is an apocalyptic number.

It is an amenable number.

23175994129 is a deficient number, since it is larger than the sum of its proper divisors (147617955).

23175994129 is a wasteful number, since it uses less digits than its factorization.

23175994129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147617954.

The product of its digits is 1224720, while the sum is 52.

The spelling of 23175994129 in words is "twenty-three billion, one hundred seventy-five million, nine hundred ninety-four thousand, one hundred twenty-nine".