132157661 has 4 divisors (see below), whose sum is σ = 132196512. Its totient is φ = 132118812.

The previous prime is 132157657. The next prime is 132157687. The reversal of 132157661 is 166751231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 132157661 - 2² = 132157657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132157601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13775 + ... + 21308.

It is an arithmetic number, because the mean of its divisors is an integer number (33049128).

Almost surely, 2^132157661 is an apocalyptic number.

It is an amenable number.

132157661 is a deficient number, since it is larger than the sum of its proper divisors (38851).

132157661 is an equidigital number, since it uses as much as digits as its factorization.

132157661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38850.

The product of its digits is 7560, while the sum is 32.

The square root of 132157661 is about 11495.9845598365. The cubic root of 132157661 is about 509.3669718634.

The spelling of 132157661 in words is "one hundred thirty-two million, one hundred fifty-seven thousand, six hundred sixty-one".