131361570 has 96 divisors (see below), whose sum is σ = 355829760. Its totient is φ = 33586560.

The previous prime is 131361557. The next prime is 131361617. The reversal of 131361570 is 75163131.

131361570 is a `hidden beast` number, since 1 + 31 + 3 + 61 + 570 = 666.

It is a Curzon number.

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, 549511 + ... + 549749.

It is an arithmetic number, because the mean of its divisors is an integer number (3706560).

Almost surely, 2^131361570 is an apocalyptic number.

131361570 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 131361570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177914880).

131361570 is an abundant number, since it is smaller than the sum of its proper divisors (224468190).

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

131361570 is a wasteful number, since it uses less digits than its factorization.

131361570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 131361570 is about 11461.3075170331. The cubic root of 131361570 is about 508.3421367880.

It can be divided in two parts, 13136 and 1570, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 131361570 in words is "one hundred thirty-one million, three hundred sixty-one thousand, five hundred seventy".