13151532 has 12 divisors (see below), whose sum is σ = 30686936. Its totient is φ = 4383840.

The previous prime is 13151531. The next prime is 13151563. The reversal of 13151532 is 23515131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13151499 and 13151508.

It is not an unprimeable number, because it can be changed into a prime (13151531) by changing a digit.

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, 547969 + ... + 547992.

Almost surely, 2^13151532 is an apocalyptic number.

13151532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13151532 is an abundant number, since it is smaller than the sum of its proper divisors (17535404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13151532 is a wasteful number, since it uses less digits than its factorization.

13151532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095968 (or 1095966 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 13151532 is about 3626.5041017487. The cubic root of 13151532 is about 236.0435378835.

Adding to 13151532 its reverse (23515131), we get a palindrome (36666663).

The spelling of 13151532 in words is "thirteen million, one hundred fifty-one thousand, five hundred thirty-two".