263374545 has 32 divisors (see below), whose sum is σ = 487710720. Its totient is φ = 118872000.

The previous prime is 263374513. The next prime is 263374567. The reversal of 263374545 is 545473362.

It is not a de Polignac number, because 263374545 - 2⁵ = 263374513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7581 + ... + 24170.

It is an arithmetic number, because the mean of its divisors is an integer number (15240960).

Almost surely, 2^263374545 is an apocalyptic number.

It is an amenable number.

263374545 is a deficient number, since it is larger than the sum of its proper divisors (224336175).

263374545 is a wasteful number, since it uses less digits than its factorization.

263374545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31845.

The product of its digits is 302400, while the sum is 39.

The square root of 263374545 is about 16228.8183488509. The cubic root of 263374545 is about 640.9998572173. Note that the first 3 decimals are identical.

The spelling of 263374545 in words is "two hundred sixty-three million, three hundred seventy-four thousand, five hundred forty-five".