45123898 has 8 divisors (see below), whose sum is σ = 71248320. Its totient is φ = 21374460.

The previous prime is 45123893. The next prime is 45123961. The reversal of 45123898 is 89832154.

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

It is a self number, because there is not a number n which added to its sum of digits gives 45123898.

It is not an unprimeable number, because it can be changed into a prime (45123893) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 593698 + ... + 593773.

It is an arithmetic number, because the mean of its divisors is an integer number (8906040).

Almost surely, 2^45123898 is an apocalyptic number.

45123898 is a deficient number, since it is larger than the sum of its proper divisors (26124422).

45123898 is a wasteful number, since it uses less digits than its factorization.

45123898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187492.

The product of its digits is 69120, while the sum is 40.

The square root of 45123898 is about 6717.4323963848. The cubic root of 45123898 is about 356.0154698071.

The spelling of 45123898 in words is "forty-five million, one hundred twenty-three thousand, eight hundred ninety-eight".