45027971 has 4 divisors (see below), whose sum is σ = 45111744. Its totient is φ = 44944200.

The previous prime is 45027959. The next prime is 45027973. The reversal of 45027971 is 17972054.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45027971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45027973) 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, 41075 + ... + 42156.

It is an arithmetic number, because the mean of its divisors is an integer number (11277936).

Almost surely, 2^45027971 is an apocalyptic number.

45027971 is a deficient number, since it is larger than the sum of its proper divisors (83773).

45027971 is an equidigital number, since it uses as much as digits as its factorization.

45027971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83772.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 45027971 is about 6710.2884438748. The cubic root of 45027971 is about 355.7630113795.

The spelling of 45027971 in words is "forty-five million, twenty-seven thousand, nine hundred seventy-one".