45145318 has 4 divisors (see below), whose sum is σ = 67717980. Its totient is φ = 22572658.

The previous prime is 45145301. The next prime is 45145363. The reversal of 45145318 is 81354154.

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

It is a super-2 number, since 2×45145318² = 4076199474642248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45145318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11286328 + ... + 11286331.

It is an arithmetic number, because the mean of its divisors is an integer number (16929495).

Almost surely, 2^45145318 is an apocalyptic number.

45145318 is a deficient number, since it is larger than the sum of its proper divisors (22572662).

45145318 is a wasteful number, since it uses less digits than its factorization.

45145318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22572661.

The product of its digits is 9600, while the sum is 31.

The square root of 45145318 is about 6719.0265664008. The cubic root of 45145318 is about 356.0717935836.

The spelling of 45145318 in words is "forty-five million, one hundred forty-five thousand, three hundred eighteen".