23451039 has 20 divisors (see below), whose sum is σ = 35851816. Its totient is φ = 15268176.

The previous prime is 23451037. The next prime is 23451047. The reversal of 23451039 is 93015432.

It is not a de Polignac number, because 23451039 - 2¹ = 23451037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451037) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117 + ... + 6849.

Almost surely, 2^23451039 is an apocalyptic number.

23451039 is a deficient number, since it is larger than the sum of its proper divisors (12400777).

23451039 is an equidigital number, since it uses as much as digits as its factorization.

23451039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6788 (or 6779 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 23451039 is about 4842.6272827877. The cubic root of 23451039 is about 286.2336550484.

The spelling of 23451039 in words is "twenty-three million, four hundred fifty-one thousand, thirty-nine".