45631771 has 4 divisors (see below), whose sum is σ = 46274544. Its totient is φ = 44989000.

The previous prime is 45631759. The next prime is 45631777. The reversal of 45631771 is 17713654.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45631771 - 2⁵ = 45631739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45631777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321280 + ... + 321421.

It is an arithmetic number, because the mean of its divisors is an integer number (11568636).

Almost surely, 2^45631771 is an apocalyptic number.

45631771 is a deficient number, since it is larger than the sum of its proper divisors (642773).

45631771 is an equidigital number, since it uses as much as digits as its factorization.

45631771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642772.

The product of its digits is 17640, while the sum is 34.

The square root of 45631771 is about 6755.1292363655. The cubic root of 45631771 is about 357.3461505676.

The spelling of 45631771 in words is "forty-five million, six hundred thirty-one thousand, seven hundred seventy-one".