23002139 has 16 divisors (see below), whose sum is σ = 25738560. Its totient is φ = 20444160.

The previous prime is 23002127. The next prime is 23002151. The reversal of 23002139 is 93120032.

23002139 = T₆₇₄ + T₆₇₅ + ... + T₇₆₂.

It is an interprime number because it is at equal distance from previous prime (23002127) and next prime (23002151).

It is a cyclic number.

It is not a de Polignac number, because 23002139 - 2⁸ = 23001883 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 23002139.

It is not an unprimeable number, because it can be changed into a prime (23002169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34469 + ... + 35129.

It is an arithmetic number, because the mean of its divisors is an integer number (1608660).

Almost surely, 2^23002139 is an apocalyptic number.

23002139 is a deficient number, since it is larger than the sum of its proper divisors (2736421).

23002139 is a wasteful number, since it uses less digits than its factorization.

23002139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 23002139 is about 4796.0545242939. The cubic root of 23002139 is about 284.3955136995.

The spelling of 23002139 in words is "twenty-three million, two thousand, one hundred thirty-nine".