131356465 has 8 divisors (see below), whose sum is σ = 158509440. Its totient is φ = 104497392.

The previous prime is 131356441. The next prime is 131356469. The reversal of 131356465 is 564653131.

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 131356465 - 2⁹ = 131355953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131356465.

It is not an unprimeable number, because it can be changed into a prime (131356469) 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, 72489 + ... + 74278.

It is an arithmetic number, because the mean of its divisors is an integer number (19813680).

Almost surely, 2^131356465 is an apocalyptic number.

It is an amenable number.

131356465 is a deficient number, since it is larger than the sum of its proper divisors (27152975).

131356465 is a wasteful number, since it uses less digits than its factorization.

131356465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146951.

The product of its digits is 32400, while the sum is 34.

The square root of 131356465 is about 11461.0848090397. The cubic root of 131356465 is about 508.3355516043.

It can be divided in two parts, 13135 and 6465, that added together give a square (19600 = 140²).

The spelling of 131356465 in words is "one hundred thirty-one million, three hundred fifty-six thousand, four hundred sixty-five".