23052139 has 8 divisors (see below), whose sum is σ = 25398000. Its totient is φ = 20748000.

The previous prime is 23052131. The next prime is 23052167. The reversal of 23052139 is 93125032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23052139 - 2³ = 23052131 is a prime.

It is a super-2 number, since 2×23052139² = 1062802224950642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23052131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9264 + ... + 11485.

It is an arithmetic number, because the mean of its divisors is an integer number (3174750).

Almost surely, 2^23052139 is an apocalyptic number.

23052139 is a deficient number, since it is larger than the sum of its proper divisors (2345861).

23052139 is a wasteful number, since it uses less digits than its factorization.

23052139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20861.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 23052139 is about 4801.2643126577. The cubic root of 23052139 is about 284.6014291129.

It can be divided in two parts, 2305 and 2139, that added together give a palindrome (4444).

The spelling of 23052139 in words is "twenty-three million, fifty-two thousand, one hundred thirty-nine".