45089971 has 2 divisors, whose sum is σ = 45089972. Its totient is φ = 45089970.

The previous prime is 45089969. The next prime is 45089977. The reversal of 45089971 is 17998054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45089971 - 2¹ = 45089969 is a prime.

Together with 45089969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45089977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22544985 + 22544986.

It is an arithmetic number, because the mean of its divisors is an integer number (22544986).

Almost surely, 2^45089971 is an apocalyptic number.

45089971 is a deficient number, since it is larger than the sum of its proper divisors (1).

45089971 is an equidigital number, since it uses as much as digits as its factorization.

45089971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 45089971 is about 6714.9066263054. The cubic root of 45089971 is about 355.9262224549.

The spelling of 45089971 in words is "forty-five million, eighty-nine thousand, nine hundred seventy-one".