23135739 has 16 divisors (see below), whose sum is σ = 33749760. Its totient is φ = 13980960.

The previous prime is 23135737. The next prime is 23135741. The reversal of 23135739 is 93753132.

It is an interprime number because it is at equal distance from previous prime (23135737) and next prime (23135741).

It is not a de Polignac number, because 23135739 - 2¹ = 23135737 is a prime.

It is a super-2 number, since 2×23135739² = 1070524838152242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (23135737) 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 15 ways as a sum of consecutive naturals, for example, 13689 + ... + 15285.

It is an arithmetic number, because the mean of its divisors is an integer number (2109360).

Almost surely, 2^23135739 is an apocalyptic number.

23135739 is a deficient number, since it is larger than the sum of its proper divisors (10614021).

23135739 is a wasteful number, since it uses less digits than its factorization.

23135739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050.

The product of its digits is 17010, while the sum is 33.

The square root of 23135739 is about 4809.9624738661. The cubic root of 23135739 is about 284.9450555823.

The spelling of 23135739 in words is "twenty-three million, one hundred thirty-five thousand, seven hundred thirty-nine".