45291999 has 8 divisors (see below), whose sum is σ = 61413120. Its totient is φ = 29682776.

The previous prime is 45291989. The next prime is 45292001. The reversal of 45291999 is 99919254.

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

It is a cyclic number.

It is not a de Polignac number, because 45291999 - 2⁷ = 45291871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45291929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127767 + ... + 128120.

It is an arithmetic number, because the mean of its divisors is an integer number (7676640).

Almost surely, 2^45291999 is an apocalyptic number.

45291999 is a deficient number, since it is larger than the sum of its proper divisors (16121121).

45291999 is a wasteful number, since it uses less digits than its factorization.

45291999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255949.

The product of its digits is 262440, while the sum is 48.

The square root of 45291999 is about 6729.9330605883. The cubic root of 45291999 is about 356.4570125866.

The spelling of 45291999 in words is "forty-five million, two hundred ninety-one thousand, nine hundred ninety-nine".