45215858 has 8 divisors (see below), whose sum is σ = 71393520. Its totient is φ = 21418020.

The previous prime is 45215857. The next prime is 45215879. The reversal of 45215858 is 85851254.

45215858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1189891 = 45215858 / (4 + 5 + 2 + 1 + 5 + 8 + 5 + 8).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45215851) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 594908 + ... + 594983.

It is an arithmetic number, because the mean of its divisors is an integer number (8924190).

Almost surely, 2^45215858 is an apocalyptic number.

45215858 is a deficient number, since it is larger than the sum of its proper divisors (26177662).

45215858 is a wasteful number, since it uses less digits than its factorization.

45215858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189912.

The product of its digits is 64000, while the sum is 38.

The square root of 45215858 is about 6724.2737897858. The cubic root of 45215858 is about 356.2571522931.

The spelling of 45215858 in words is "forty-five million, two hundred fifteen thousand, eight hundred fifty-eight".