131564959 has 8 divisors (see below), whose sum is σ = 132480000. Its totient is φ = 130653432.

The previous prime is 131564957. The next prime is 131564963. The reversal of 131564959 is 959465131.

131564959 = T₄₉₀ + T₄₉₁ + ... + T₉₆₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131564959 - 2¹ = 131564957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131564957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142702 + ... + 143620.

It is an arithmetic number, because the mean of its divisors is an integer number (16560000).

Almost surely, 2^131564959 is an apocalyptic number.

131564959 is a deficient number, since it is larger than the sum of its proper divisors (915041).

131564959 is an equidigital number, since it uses as much as digits as its factorization.

131564959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757.

The product of its digits is 145800, while the sum is 43.

The square root of 131564959 is about 11470.1769384783. The cubic root of 131564959 is about 508.6043593036.

The spelling of 131564959 in words is "one hundred thirty-one million, five hundred sixty-four thousand, nine hundred fifty-nine".