45161216 has 36 divisors (see below), whose sum is σ = 91526232. Its totient is φ = 22235136.

The previous prime is 45161209. The next prime is 45161227. The reversal of 45161216 is 61216154.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15836 + ... + 18468.

Almost surely, 2^45161216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45161216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45763116).

45161216 is an abundant number, since it is smaller than the sum of its proper divisors (46365016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45161216 is an equidigital number, since it uses as much as digits as its factorization.

45161216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716 (or 2702 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 45161216 is about 6720.2095205432. The cubic root of 45161216 is about 356.1135857728.

The spelling of 45161216 in words is "forty-five million, one hundred sixty-one thousand, two hundred sixteen".