131291948 has 6 divisors (see below), whose sum is σ = 229760916. Its totient is φ = 65645972.

The previous prime is 131291929. The next prime is 131291977. The reversal of 131291948 is 849192131.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16411490 + ... + 16411497.

It is an arithmetic number, because the mean of its divisors is an integer number (38293486).

Almost surely, 2^131291948 is an apocalyptic number.

It is an amenable number.

131291948 is a deficient number, since it is larger than the sum of its proper divisors (98468968).

131291948 is a wasteful number, since it uses less digits than its factorization.

131291948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32822991 (or 32822989 counting only the distinct ones).

The product of its digits is 15552, while the sum is 38.

The square root of 131291948 is about 11458.2698519454. The cubic root of 131291948 is about 508.2523133319.

The spelling of 131291948 in words is "one hundred thirty-one million, two hundred ninety-one thousand, nine hundred forty-eight".