45081971 has 8 divisors (see below), whose sum is σ = 49734000. Its totient is φ = 40522240.

The previous prime is 45081961. The next prime is 45081991. The reversal of 45081971 is 17918054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-45081971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45081941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22046 + ... + 24003.

It is an arithmetic number, because the mean of its divisors is an integer number (6216750).

Almost surely, 2^45081971 is an apocalyptic number.

45081971 is a deficient number, since it is larger than the sum of its proper divisors (4652029).

45081971 is a wasteful number, since it uses less digits than its factorization.

45081971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46149.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 45081971 is about 6714.3109102871. The cubic root of 45081971 is about 355.9051713717.

The spelling of 45081971 in words is "forty-five million, eighty-one thousand, nine hundred seventy-one".