131404770 has 144 divisors (see below), whose sum is σ = 403341120. Its totient is φ = 29590848.

The previous prime is 131404769. The next prime is 131404807. The reversal of 131404770 is 77404131.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 365851 + ... + 366209.

It is an arithmetic number, because the mean of its divisors is an integer number (2800980).

Almost surely, 2^131404770 is an apocalyptic number.

131404770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131404770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201670560).

131404770 is an abundant number, since it is smaller than the sum of its proper divisors (271936350).

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

131404770 is a wasteful number, since it uses less digits than its factorization.

131404770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 131404770 is about 11463.1919638467. The cubic root of 131404770 is about 508.3978557055.

The spelling of 131404770 in words is "one hundred thirty-one million, four hundred four thousand, seven hundred seventy".