45082138 has 4 divisors (see below), whose sum is σ = 67623210. Its totient is φ = 22541068.

The previous prime is 45082127. The next prime is 45082157. The reversal of 45082138 is 83128054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34539129 + 10543009 = 5877^2 + 3247^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270533 + ... + 11270536.

Almost surely, 2^45082138 is an apocalyptic number.

45082138 is a deficient number, since it is larger than the sum of its proper divisors (22541072).

45082138 is a wasteful number, since it uses less digits than its factorization.

45082138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22541071.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 45082138 is about 6714.3233463991. The cubic root of 45082138 is about 355.9056108385.

The spelling of 45082138 in words is "forty-five million, eighty-two thousand, one hundred thirty-eight".