131895770 has 32 divisors (see below), whose sum is σ = 251611920. Its totient is φ = 49692160.

The previous prime is 131895769. The next prime is 131895779. The reversal of 131895770 is 77598131.

It can be written as a sum of positive squares in 8 ways, for example, as 45387169 + 86508601 = 6737^2 + 9301^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (131895779) 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, 6344 + ... + 17436.

Almost surely, 2^131895770 is an apocalyptic number.

131895770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131895770 is a deficient number, since it is larger than the sum of its proper divisors (119716150).

131895770 is a wasteful number, since it uses less digits than its factorization.

131895770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11170.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 131895770 is about 11484.5883687662. The cubic root of 131895770 is about 509.0302860230.

The spelling of 131895770 in words is "one hundred thirty-one million, eight hundred ninety-five thousand, seven hundred seventy".