131709900 has 144 divisors (see below), whose sum is σ = 458581760. Its totient is φ = 28512000.

The previous prime is 131709887. The next prime is 131709923. The reversal of 131709900 is 9907131.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38250 + ... + 41550.

Almost surely, 2^131709900 is an apocalyptic number.

131709900 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 131709900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229290880).

131709900 is an abundant number, since it is smaller than the sum of its proper divisors (326871860).

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

131709900 is a wasteful number, since it uses less digits than its factorization.

131709900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344 (or 3337 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 131709900 is about 11476.4933668782. The cubic root of 131709900 is about 508.7910619301.

The spelling of 131709900 in words is "one hundred thirty-one million, seven hundred nine thousand, nine hundred".