23105385 has 32 divisors (see below), whose sum is σ = 42408960. Its totient is φ = 11923200.

The previous prime is 23105371. The next prime is 23105399. The reversal of 23105385 is 58350132.

It is an interprime number because it is at equal distance from previous prime (23105371) and next prime (23105399).

It is not a de Polignac number, because 23105385 - 2¹¹ = 23103337 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1425 + ... + 6945.

It is an arithmetic number, because the mean of its divisors is an integer number (1325280).

Almost surely, 2^23105385 is an apocalyptic number.

It is an amenable number.

23105385 is a deficient number, since it is larger than the sum of its proper divisors (19303575).

23105385 is a wasteful number, since it uses less digits than its factorization.

23105385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566 (or 5560 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 23105385 is about 4806.8061121705. The cubic root of 23105385 is about 284.8203854409.

The spelling of 23105385 in words is "twenty-three million, one hundred five thousand, three hundred eighty-five".