45138510 has 48 divisors (see below), whose sum is σ = 119587104. Its totient is φ = 11808576.

The previous prime is 45138497. The next prime is 45138551. The reversal of 45138510 is 1583154.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 39 + ... + 9501.

It is an arithmetic number, because the mean of its divisors is an integer number (2491398).

Almost surely, 2^45138510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45138510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59793552).

45138510 is an abundant number, since it is smaller than the sum of its proper divisors (74448594).

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

45138510 is a wasteful number, since it uses less digits than its factorization.

45138510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9529 (or 9526 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 45138510 is about 6718.5199262933. The cubic root of 45138510 is about 356.0538939154.

The spelling of 45138510 in words is "forty-five million, one hundred thirty-eight thousand, five hundred ten".