45215798 has 4 divisors (see below), whose sum is σ = 67823700. Its totient is φ = 22607898.

The previous prime is 45215789. The next prime is 45215803. The reversal of 45215798 is 89751254.

45215798 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, 11303948 + ... + 11303951.

It is an arithmetic number, because the mean of its divisors is an integer number (16955925).

Almost surely, 2^45215798 is an apocalyptic number.

45215798 is a deficient number, since it is larger than the sum of its proper divisors (22607902).

45215798 is a wasteful number, since it uses less digits than its factorization.

45215798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22607901.

The product of its digits is 100800, while the sum is 41.

The square root of 45215798 is about 6724.2693283360. The cubic root of 45215798 is about 356.2569947124.

The spelling of 45215798 in words is "forty-five million, two hundred fifteen thousand, seven hundred ninety-eight".