45619971 has 16 divisors (see below), whose sum is σ = 63638784. Its totient is φ = 29014304.

The previous prime is 45619967. The next prime is 45619997. The reversal of 45619971 is 17991654.

It is a cyclic number.

It is not a de Polignac number, because 45619971 - 2² = 45619967 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45619901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37840 + ... + 39026.

It is an arithmetic number, because the mean of its divisors is an integer number (3977424).

Almost surely, 2^45619971 is an apocalyptic number.

45619971 is a deficient number, since it is larger than the sum of its proper divisors (18018813).

45619971 is a wasteful number, since it uses less digits than its factorization.

45619971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770.

The product of its digits is 68040, while the sum is 42.

The square root of 45619971 is about 6754.2557695130. The cubic root of 45619971 is about 357.3153456554.

The spelling of 45619971 in words is "forty-five million, six hundred nineteen thousand, nine hundred seventy-one".