331375545 has 12 divisors (see below), whose sum is σ = 574384356. Its totient is φ = 176733600.

The previous prime is 331375511. The next prime is 331375567. The reversal of 331375545 is 545573133.

331375545 is a `hidden beast` number, since 33 + 13 + 75 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 132227001 + 199148544 = 11499^2 + 14112^2 .

It is not a de Polignac number, because 331375545 - 2⁷ = 331375417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3681906 + ... + 3681995.

It is an arithmetic number, because the mean of its divisors is an integer number (47865363).

Almost surely, 2^331375545 is an apocalyptic number.

It is an amenable number.

331375545 is a deficient number, since it is larger than the sum of its proper divisors (243008811).

331375545 is a wasteful number, since it uses less digits than its factorization.

331375545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363912 (or 7363909 counting only the distinct ones).

The product of its digits is 94500, while the sum is 36.

The square root of 331375545 is about 18203.7233828687. The cubic root of 331375545 is about 692.0011534223.

The spelling of 331375545 in words is "three hundred thirty-one million, three hundred seventy-five thousand, five hundred forty-five".