131479964 has 48 divisors (see below), whose sum is σ = 288798720. Its totient is φ = 50880960.

The previous prime is 131479963. The next prime is 131479979. The reversal of 131479964 is 469974131.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131479963) 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, 46997 + ... + 49715.

It is an arithmetic number, because the mean of its divisors is an integer number (6016640).

Almost surely, 2^131479964 is an apocalyptic number.

131479964 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 131479964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144399360).

131479964 is an abundant number, since it is smaller than the sum of its proper divisors (157318756).

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

131479964 is a wasteful number, since it uses less digits than its factorization.

131479964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898 (or 2896 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 131479964 is about 11466.4712967852. The cubic root of 131479964 is about 508.4948110363.

The spelling of 131479964 in words is "one hundred thirty-one million, four hundred seventy-nine thousand, nine hundred sixty-four".