45726121 has 16 divisors (see below), whose sum is σ = 54172800. Its totient is φ = 37784448.

The previous prime is 45726113. The next prime is 45726133. The reversal of 45726121 is 12162754.

It is a cyclic number.

It is not a de Polignac number, because 45726121 - 2³ = 45726113 is a prime.

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 45726121.

It is not an unprimeable number, because it can be changed into a prime (45726151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20845 + ... + 22933.

It is an arithmetic number, because the mean of its divisors is an integer number (3385800).

Almost surely, 2^45726121 is an apocalyptic number.

It is an amenable number.

45726121 is a deficient number, since it is larger than the sum of its proper divisors (8446679).

45726121 is a wasteful number, since it uses less digits than its factorization.

45726121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208.

The product of its digits is 3360, while the sum is 28.

The square root of 45726121 is about 6762.1092123686. The cubic root of 45726121 is about 357.5922685536.

Adding to 45726121 its reverse (12162754), we get a palindrome (57888875).

The spelling of 45726121 in words is "forty-five million, seven hundred twenty-six thousand, one hundred twenty-one".