45158449 has 6 divisors (see below), whose sum is σ = 52531314. Its totient is φ = 38707200.

The previous prime is 45158441. The next prime is 45158521. The reversal of 45158449 is 94485154.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 49 = 6720^2 + 7^2 .

It is not a de Polignac number, because 45158449 - 2³ = 45158441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45158441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 460752 + ... + 460849.

It is an arithmetic number, because the mean of its divisors is an integer number (8755219).

Almost surely, 2^45158449 is an apocalyptic number.

45158449 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

45158449 is a deficient number, since it is larger than the sum of its proper divisors (7372865).

45158449 is an equidigital number, since it uses as much as digits as its factorization.

45158449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921615 (or 921608 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 45158449 is about 6720.0036458323. The cubic root of 45158449 is about 356.1063126706.

It can be divided in two parts, 451584 and 49, that multiplied together give a square (22127616 = 4704²).

The spelling of 45158449 in words is "forty-five million, one hundred fifty-eight thousand, four hundred forty-nine".