131415830 has 32 divisors (see below), whose sum is σ = 291138624. Its totient is φ = 41590656.

The previous prime is 131415811. The next prime is 131415839. The reversal of 131415830 is 38514131.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 131415830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131415839) by changing a digit.

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, 71297 + ... + 73116.

It is an arithmetic number, because the mean of its divisors is an integer number (9098082).

Almost surely, 2^131415830 is an apocalyptic number.

131415830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131415830 is an abundant number, since it is smaller than the sum of its proper divisors (159722794).

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

131415830 is a wasteful number, since it uses less digits than its factorization.

131415830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144440.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 131415830 is about 11463.6743673222. The cubic root of 131415830 is about 508.4121188167.

Adding to 131415830 its reverse (38514131), we get a palindrome (169929961).

The spelling of 131415830 in words is "one hundred thirty-one million, four hundred fifteen thousand, eight hundred thirty".