132991995 has 16 divisors (see below), whose sum is σ = 213426720. Its totient is φ = 70715904.

The previous prime is 132991993. The next prime is 132992009. The reversal of 132991995 is 599199231.

It is not a de Polignac number, because 132991995 - 2¹ = 132991993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132991993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8100 + ... + 18209.

It is an arithmetic number, because the mean of its divisors is an integer number (13339170).

Almost surely, 2^132991995 is an apocalyptic number.

132991995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

132991995 is a deficient number, since it is larger than the sum of its proper divisors (80434725).

132991995 is a wasteful number, since it uses less digits than its factorization.

132991995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26654.

The product of its digits is 196830, while the sum is 48.

The square root of 132991995 is about 11532.2155286831. The cubic root of 132991995 is about 510.4366310743.

The spelling of 132991995 in words is "one hundred thirty-two million, nine hundred ninety-one thousand, nine hundred ninety-five".