45109128 has 32 divisors (see below), whose sum is σ = 113097600. Its totient is φ = 14993088.

The previous prime is 45109117. The next prime is 45109139. The reversal of 45109128 is 82190154.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45109117) and next prime (45109139).

It is a junction number, because it is equal to n+sod(n) for n = 45109095 and 45109104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6433 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (3534300).

Almost surely, 2^45109128 is an apocalyptic number.

It is an amenable number.

45109128 is an abundant number, since it is smaller than the sum of its proper divisors (67988472).

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

45109128 is a wasteful number, since it uses less digits than its factorization.

45109128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421 (or 5417 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 45109128 is about 6716.3329280196. The cubic root of 45109128 is about 355.9766217868.

The spelling of 45109128 in words is "forty-five million, one hundred nine thousand, one hundred twenty-eight".