132720836 has 24 divisors (see below), whose sum is σ = 249602976. Its totient is φ = 61522560.

The previous prime is 132720799. The next prime is 132720839. The reversal of 132720836 is 638027231.

It is a happy number.

It is a super-2 number, since 2×132720836² = 35229640617077792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (132720839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10010 + ... + 19121.

It is an arithmetic number, because the mean of its divisors is an integer number (10400124).

Almost surely, 2^132720836 is an apocalyptic number.

It is an amenable number.

132720836 is a deficient number, since it is larger than the sum of its proper divisors (116882140).

132720836 is a wasteful number, since it uses less digits than its factorization.

132720836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29219 (or 29217 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 132720836 is about 11520.4529424845. The cubic root of 132720836 is about 510.0894832093.

The spelling of 132720836 in words is "one hundred thirty-two million, seven hundred twenty thousand, eight hundred thirty-six".