131523130 has 24 divisors (see below), whose sum is σ = 249864372. Its totient is φ = 49838976.

The previous prime is 131523127. The next prime is 131523143. The reversal of 131523130 is 31325131.

It can be written as a sum of positive squares in 2 ways, for example, as 128663649 + 2859481 = 11343^2 + 1691^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 131523098 and 131523107.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14607 + ... + 21826.

Almost surely, 2^131523130 is an apocalyptic number.

131523130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131523130 is a deficient number, since it is larger than the sum of its proper divisors (118341242).

131523130 is a wasteful number, since it uses less digits than its factorization.

131523130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36478 (or 36459 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 131523130 is about 11468.3534127616. The cubic root of 131523130 is about 508.5504526836.

Adding to 131523130 its reverse (31325131), we get a palindrome (162848261).

The spelling of 131523130 in words is "one hundred thirty-one million, five hundred twenty-three thousand, one hundred thirty".