45205771 has 32 divisors (see below), whose sum is σ = 54286848. Its totient is φ = 37255680.

The previous prime is 45205757. The next prime is 45205789. The reversal of 45205771 is 17750254.

It is a cyclic number.

It is not a de Polignac number, because 45205771 - 2¹⁵ = 45173003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45206771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636666 + ... + 636736.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 2^45205771 is an apocalyptic number.

45205771 is a deficient number, since it is larger than the sum of its proper divisors (9081077).

45205771 is a wasteful number, since it uses less digits than its factorization.

45205771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 45205771 is about 6723.5237041301. The cubic root of 45205771 is about 356.2306583939.

The spelling of 45205771 in words is "forty-five million, two hundred five thousand, seven hundred seventy-one".