45554149 has 4 divisors (see below), whose sum is σ = 45585036. Its totient is φ = 45523264.

The previous prime is 45554123. The next prime is 45554161. The reversal of 45554149 is 94145554.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19980900 + 25573249 = 4470^2 + 5057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45554149 is a prime.

It is a super-2 number, since 2×45554149² = 4150360982228402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45554749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13114 + ... + 16219.

It is an arithmetic number, because the mean of its divisors is an integer number (11396259).

Almost surely, 2^45554149 is an apocalyptic number.

It is an amenable number.

45554149 is a deficient number, since it is larger than the sum of its proper divisors (30887).

45554149 is a wasteful number, since it uses less digits than its factorization.

45554149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30886.

The product of its digits is 72000, while the sum is 37.

The square root of 45554149 is about 6749.3813790599. The cubic root of 45554149 is about 357.1434141477.

The spelling of 45554149 in words is "forty-five million, five hundred fifty-four thousand, one hundred forty-nine".