131191270 has 40 divisors (see below), whose sum is σ = 277375824. Its totient is φ = 43764192.

The previous prime is 131191259. The next prime is 131191283. The reversal of 131191270 is 72191131.

131191270 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131191270² = 34422298648425800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3545692 + ... + 3545728.

Almost surely, 2^131191270 is an apocalyptic number.

131191270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131191270 is an abundant number, since it is smaller than the sum of its proper divisors (146184554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131191270 is an frugal number, since it uses more digits than its factorization.

131191270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 131191270 is about 11453.8757632515. The cubic root of 131191270 is about 508.1223665169.

The spelling of 131191270 in words is "one hundred thirty-one million, one hundred ninety-one thousand, two hundred seventy".