45166121 has 16 divisors (see below), whose sum is σ = 60643968. Its totient is φ = 32486400.

The previous prime is 45166103. The next prime is 45166139. The reversal of 45166121 is 12166154.

It is an interprime number because it is at equal distance from previous prime (45166103) and next prime (45166139).

It is a cyclic number.

It is not a de Polignac number, because 45166121 - 2¹⁴ = 45149737 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45166141) 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, 21560 + ... + 23561.

It is an arithmetic number, because the mean of its divisors is an integer number (3790248).

Almost surely, 2^45166121 is an apocalyptic number.

It is an amenable number.

45166121 is a deficient number, since it is larger than the sum of its proper divisors (15477847).

45166121 is a wasteful number, since it uses less digits than its factorization.

45166121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45152.

The product of its digits is 1440, while the sum is 26.

The square root of 45166121 is about 6720.5744546132. The cubic root of 45166121 is about 356.1264779109.

The spelling of 45166121 in words is "forty-five million, one hundred sixty-six thousand, one hundred twenty-one".