131451265 has 8 divisors (see below), whose sum is σ = 172081728. Its totient is φ = 95600880.

The previous prime is 131451263. The next prime is 131451277. The reversal of 131451265 is 562154131.

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

It is not a de Polignac number, because 131451265 - 2¹ = 131451263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131451263) 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, 1194957 + ... + 1195066.

It is an arithmetic number, because the mean of its divisors is an integer number (21510216).

Almost surely, 2^131451265 is an apocalyptic number.

It is an amenable number.

131451265 is a deficient number, since it is larger than the sum of its proper divisors (40630463).

131451265 is a wasteful number, since it uses less digits than its factorization.

131451265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390039.

The product of its digits is 3600, while the sum is 28.

The square root of 131451265 is about 11465.2197972826. The cubic root of 131451265 is about 508.4578108373.

The spelling of 131451265 in words is "one hundred thirty-one million, four hundred fifty-one thousand, two hundred sixty-five".