45139896 has 128 divisors (see below), whose sum is σ = 139968000. Its totient is φ = 13395456.

The previous prime is 45139867. The next prime is 45139909. The reversal of 45139896 is 69893154.

45139896 = T₁ + T₂ + ... + T₆₄₆.

It is a happy number.

45139896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

45139896 is a nontrivial binomial coefficient, being equal to C(648, 3).

It is a super-2 number, since 2×45139896² = 4075220421781632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is the 646-th tetrahedral 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 in 31 ways as a sum of consecutive naturals, for example, 69445 + ... + 70091.

It is an arithmetic number, because the mean of its divisors is an integer number (1093500).

Almost surely, 2^45139896 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 45139896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69984000).

45139896 is an abundant number, since it is smaller than the sum of its proper divisors (94828104).

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

45139896 is a wasteful number, since it uses less digits than its factorization.

45139896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 688 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 45139896 is about 6718.6230732197. The cubic root of 45139896 is about 356.0575381477.

The spelling of 45139896 in words is "forty-five million, one hundred thirty-nine thousand, eight hundred ninety-six".