23151039 has 4 divisors (see below), whose sum is σ = 30868056. Its totient is φ = 15434024.

The previous prime is 23151031. The next prime is 23151047. The reversal of 23151039 is 93015132.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (23151031) and next prime (23151047).

It is a cyclic number.

It is not a de Polignac number, because 23151039 - 2³ = 23151031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3858504 + ... + 3858509.

It is an arithmetic number, because the mean of its divisors is an integer number (7717014).

Almost surely, 2^23151039 is an apocalyptic number.

23151039 is a deficient number, since it is larger than the sum of its proper divisors (7717017).

23151039 is an equidigital number, since it uses as much as digits as its factorization.

23151039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717016.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 23151039 is about 4811.5526600049. The cubic root of 23151039 is about 285.0078545081.

The spelling of 23151039 in words is "twenty-three million, one hundred fifty-one thousand, thirty-nine".