131496420 has 96 divisors (see below), whose sum is σ = 414683136. Its totient is φ = 30844800.

The previous prime is 131496373. The next prime is 131496437. The reversal of 131496420 is 24694131.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 17247 + ... + 23673.

It is an arithmetic number, because the mean of its divisors is an integer number (4319616).

Almost surely, 2^131496420 is an apocalyptic number.

131496420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131496420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207341568).

131496420 is an abundant number, since it is smaller than the sum of its proper divisors (283186716).

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

131496420 is a wasteful number, since it uses less digits than its factorization.

131496420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481 (or 6479 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 131496420 is about 11467.1888446995. The cubic root of 131496420 is about 508.5160245132.

The spelling of 131496420 in words is "one hundred thirty-one million, four hundred ninety-six thousand, four hundred twenty".