545977131 has 16 divisors (see below), whose sum is σ = 832300800. Its totient is φ = 311861088.

The previous prime is 545977057. The next prime is 545977163. The reversal of 545977131 is 131779545.

It is not a de Polignac number, because 545977131 - 2¹⁸ = 545714987 is a prime.

It is a super-2 number, since 2×545977131² = 596182055149982322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545977231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81165 + ... + 87633.

It is an arithmetic number, because the mean of its divisors is an integer number (52018800).

Almost surely, 2^545977131 is an apocalyptic number.

545977131 is a deficient number, since it is larger than the sum of its proper divisors (286323669).

545977131 is a wasteful number, since it uses less digits than its factorization.

545977131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498.

The product of its digits is 132300, while the sum is 42.

The square root of 545977131 is about 23366.1535345465. The cubic root of 545977131 is about 817.3187912099.

The spelling of 545977131 in words is "five hundred forty-five million, nine hundred seventy-seven thousand, one hundred thirty-one".