23129132 has 12 divisors (see below), whose sum is σ = 43589616. Its totient is φ = 10674960.

The previous prime is 23129111. The next prime is 23129159. The reversal of 23129132 is 23192132.

It is a junction number, because it is equal to n+sod(n) for n = 23129098 and 23129107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222344 + ... + 222447.

It is an arithmetic number, because the mean of its divisors is an integer number (3632468).

Almost surely, 2^23129132 is an apocalyptic number.

It is an amenable number.

23129132 is a deficient number, since it is larger than the sum of its proper divisors (20460484).

23129132 is a wasteful number, since it uses less digits than its factorization.

23129132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444808 (or 444806 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 23129132 is about 4809.2756211305. The cubic root of 23129132 is about 284.9179285586.

The spelling of 23129132 in words is "twenty-three million, one hundred twenty-nine thousand, one hundred thirty-two".