23129146 has 24 divisors (see below), whose sum is σ = 37546740. Its totient is φ = 10647936.

The previous prime is 23129111. The next prime is 23129159. The reversal of 23129146 is 64192132.

It can be written as a sum of positive squares in 2 ways, for example, as 21724921 + 1404225 = 4661^2 + 1185^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212140 + ... + 212248.

Almost surely, 2^23129146 is an apocalyptic number.

23129146 is a deficient number, since it is larger than the sum of its proper divisors (14417594).

23129146 is a wasteful number, since it uses less digits than its factorization.

23129146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 207 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 23129146 is about 4809.2770766509. The cubic root of 23129146 is about 284.9179860452.

The spelling of 23129146 in words is "twenty-three million, one hundred twenty-nine thousand, one hundred forty-six".