131873430 has 32 divisors (see below), whose sum is σ = 340843104. Its totient is φ = 32461056.

The previous prime is 131873419. The next prime is 131873431. The reversal of 131873430 is 34378131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131873431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168679 + ... + 169458.

It is an arithmetic number, because the mean of its divisors is an integer number (10651347).

Almost surely, 2^131873430 is an apocalyptic number.

131873430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131873430 is an abundant number, since it is smaller than the sum of its proper divisors (208969674).

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

131873430 is a wasteful number, since it uses less digits than its factorization.

131873430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338160.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 131873430 is about 11483.6157197984. The cubic root of 131873430 is about 509.0015452006.

The spelling of 131873430 in words is "one hundred thirty-one million, eight hundred seventy-three thousand, four hundred thirty".