13213532 has 6 divisors (see below), whose sum is σ = 23123688. Its totient is φ = 6606764.

The previous prime is 13213507. The next prime is 13213547. The reversal of 13213532 is 23531231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651688 + ... + 1651695.

It is an arithmetic number, because the mean of its divisors is an integer number (3853948).

Almost surely, 2^13213532 is an apocalyptic number.

It is an amenable number.

13213532 is a deficient number, since it is larger than the sum of its proper divisors (9910156).

13213532 is a wasteful number, since it uses less digits than its factorization.

13213532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303387 (or 3303385 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 13213532 is about 3635.0422280903. The cubic root of 13213532 is about 236.4138816081.

Adding to 13213532 its reverse (23531231), we get a palindrome (36744763).

The spelling of 13213532 in words is "thirteen million, two hundred thirteen thousand, five hundred thirty-two".