132561379 has 4 divisors (see below), whose sum is σ = 132585376. Its totient is φ = 132537384.

The previous prime is 132561367. The next prime is 132561391. The reversal of 132561379 is 973165231.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (132561367) and next prime (132561391).

It is a cyclic number.

It is not a de Polignac number, because 132561379 - 2⁷ = 132561251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132561329) 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, 937 + ... + 16309.

It is an arithmetic number, because the mean of its divisors is an integer number (33146344).

Almost surely, 2^132561379 is an apocalyptic number.

132561379 is a deficient number, since it is larger than the sum of its proper divisors (23997).

132561379 is an equidigital number, since it uses as much as digits as its factorization.

132561379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23996.

The product of its digits is 34020, while the sum is 37.

The square root of 132561379 is about 11513.5302579183. The cubic root of 132561379 is about 509.8851195813.

The spelling of 132561379 in words is "one hundred thirty-two million, five hundred sixty-one thousand, three hundred seventy-nine".