131772553 has 8 divisors (see below), whose sum is σ = 145572480. Its totient is φ = 118276080.

The previous prime is 131772551. The next prime is 131772569. The reversal of 131772553 is 355277131.

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 131772553 - 2¹ = 131772551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131772551) 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, 74950 + ... + 76687.

It is an arithmetic number, because the mean of its divisors is an integer number (18196560).

Almost surely, 2^131772553 is an apocalyptic number.

It is an amenable number.

131772553 is a deficient number, since it is larger than the sum of its proper divisors (13799927).

131772553 is a wasteful number, since it uses less digits than its factorization.

131772553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151727.

The product of its digits is 22050, while the sum is 34.

The square root of 131772553 is about 11479.2226653202. Note that the first 3 decimals coincide. The cubic root of 131772553 is about 508.8717246421.

The spelling of 131772553 in words is "one hundred thirty-one million, seven hundred seventy-two thousand, five hundred fifty-three".