45157219 has 8 divisors (see below), whose sum is σ = 48716640. Its totient is φ = 41698176.

The previous prime is 45157199. The next prime is 45157249. The reversal of 45157219 is 91275154.

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 45157219 - 2²¹ = 43060067 is a prime.

It is a super-2 number, since 2×45157219² = 4078348855627922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45157249) 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, 24159 + ... + 25960.

It is an arithmetic number, because the mean of its divisors is an integer number (6089580).

Almost surely, 2^45157219 is an apocalyptic number.

45157219 is a deficient number, since it is larger than the sum of its proper divisors (3559421).

45157219 is a wasteful number, since it uses less digits than its factorization.

45157219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50189.

The product of its digits is 12600, while the sum is 34.

The square root of 45157219 is about 6719.9121274017. The cubic root of 45157219 is about 356.1030795012.

The spelling of 45157219 in words is "forty-five million, one hundred fifty-seven thousand, two hundred nineteen".