131513430 has 32 divisors (see below), whose sum is σ = 315962208. Its totient is φ = 35033600.

The previous prime is 131513423. The next prime is 131513441. The reversal of 131513430 is 34315131.

It is a junction number, because it is equal to n+sod(n) for n = 131513397 and 131513406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39220 + ... + 42440.

It is an arithmetic number, because the mean of its divisors is an integer number (9873819).

Almost surely, 2^131513430 is an apocalyptic number.

131513430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131513430 is an abundant number, since it is smaller than the sum of its proper divisors (184448778).

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

131513430 is a wasteful number, since it uses less digits than its factorization.

131513430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 131513430 is about 11467.9305020566. The cubic root of 131513430 is about 508.5379502929.

Adding to 131513430 its reverse (34315131), we get a palindrome (165828561).

The spelling of 131513430 in words is "one hundred thirty-one million, five hundred thirteen thousand, four hundred thirty".