131102140 has 48 divisors (see below), whose sum is σ = 297339840. Its totient is φ = 48268800.

The previous prime is 131102089. The next prime is 131102177. The reversal of 131102140 is 41201131.

It is a super-2 number, since 2×131102140² = 34375542225159200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 131102140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155841 + ... + 156679.

It is an arithmetic number, because the mean of its divisors is an integer number (6194580).

Almost surely, 2^131102140 is an apocalyptic number.

131102140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131102140 is an abundant number, since it is smaller than the sum of its proper divisors (166237700).

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

131102140 is a wasteful number, since it uses less digits than its factorization.

131102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 131102140 is about 11449.9842794652. The cubic root of 131102140 is about 508.0072694105.

Adding to 131102140 its reverse (41201131), we get a palindrome (172303271).

The spelling of 131102140 in words is "one hundred thirty-one million, one hundred two thousand, one hundred forty".