45725138 has 8 divisors (see below), whose sum is σ = 72622332. Its totient is φ = 21517696.

The previous prime is 45725129. The next prime is 45725143. The reversal of 45725138 is 83152754.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43784689 + 1940449 = 6617^2 + 1393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 45725098 and 45725107.

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, 672395 + ... + 672462.

Almost surely, 2^45725138 is an apocalyptic number.

45725138 is a deficient number, since it is larger than the sum of its proper divisors (26897194).

45725138 is a wasteful number, since it uses less digits than its factorization.

45725138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344876.

The product of its digits is 33600, while the sum is 35.

The square root of 45725138 is about 6762.0365275559. The cubic root of 45725138 is about 357.5897060816.

The spelling of 45725138 in words is "forty-five million, seven hundred twenty-five thousand, one hundred thirty-eight".