131240264 has 16 divisors (see below), whose sum is σ = 249041520. Its totient is φ = 64829200.

The previous prime is 131240209. The next prime is 131240281. The reversal of 131240264 is 462042131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98162 + ... + 99489.

It is an arithmetic number, because the mean of its divisors is an integer number (15565095).

Almost surely, 2^131240264 is an apocalyptic number.

It is an amenable number.

131240264 is a deficient number, since it is larger than the sum of its proper divisors (117801256).

131240264 is a wasteful number, since it uses less digits than its factorization.

131240264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197740 (or 197736 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 131240264 is about 11456.0143156335. The cubic root of 131240264 is about 508.1856122111.

Adding to 131240264 its reverse (462042131), we get a palindrome (593282395).

The spelling of 131240264 in words is "one hundred thirty-one million, two hundred forty thousand, two hundred sixty-four".