45171902 has 4 divisors (see below), whose sum is σ = 67757856. Its totient is φ = 22585950.

The previous prime is 45171881. The next prime is 45171913. The reversal of 45171902 is 20917154.

45171902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11292974 + ... + 11292977.

It is an arithmetic number, because the mean of its divisors is an integer number (16939464).

Almost surely, 2^45171902 is an apocalyptic number.

45171902 is a deficient number, since it is larger than the sum of its proper divisors (22585954).

45171902 is a wasteful number, since it uses less digits than its factorization.

45171902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585953.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 45171902 is about 6721.0045380136. The cubic root of 45171902 is about 356.1416712999.

The spelling of 45171902 in words is "forty-five million, one hundred seventy-one thousand, nine hundred two".