45990361 has 4 divisors (see below), whose sum is σ = 46012900. Its totient is φ = 45967824.

The previous prime is 45990353. The next prime is 45990367. The reversal of 45990361 is 16309954.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16309954 = 2 ⋅8154977.

It can be written as a sum of positive squares in 2 ways, for example, as 16451136 + 29539225 = 4056^2 + 5435^2 .

It is a cyclic number.

It is not a de Polignac number, because 45990361 - 2³ = 45990353 is a prime.

It is a super-2 number, since 2×45990361² = 4230226609820642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45990361.

It is not an unprimeable number, because it can be changed into a prime (45990367) 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, 7866 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (11503225).

Almost surely, 2^45990361 is an apocalyptic number.

It is an amenable number.

45990361 is a deficient number, since it is larger than the sum of its proper divisors (22539).

45990361 is a wasteful number, since it uses less digits than its factorization.

45990361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22538.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 45990361 is about 6781.6193493885. The cubic root of 45990361 is about 358.2797585429.

The spelling of 45990361 in words is "forty-five million, nine hundred ninety thousand, three hundred sixty-one".