131366004 has 96 divisors (see below), whose sum is σ = 404683776. Its totient is φ = 32110080.

The previous prime is 131365991. The next prime is 131366023. The reversal of 131366004 is 400663131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11527 + ... + 19889.

It is an arithmetic number, because the mean of its divisors is an integer number (4215456).

Almost surely, 2^131366004 is an apocalyptic number.

131366004 is a gapful number since it is divisible by the number (14) 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 131366004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202341888).

131366004 is an abundant number, since it is smaller than the sum of its proper divisors (273317772).

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

131366004 is a wasteful number, since it uses less digits than its factorization.

131366004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405 (or 8403 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 131366004 is about 11461.5009488286. The cubic root of 131366004 is about 508.3478562783.

The spelling of 131366004 in words is "one hundred thirty-one million, three hundred sixty-six thousand, four".