45555161 has 4 divisors (see below), whose sum is σ = 45570000. Its totient is φ = 45540324.

The previous prime is 45555137. The next prime is 45555163. The reversal of 45555161 is 16155554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45555161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45555163) 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, 911 + ... + 9588.

It is an arithmetic number, because the mean of its divisors is an integer number (11392500).

Almost surely, 2^45555161 is an apocalyptic number.

It is an amenable number.

45555161 is a deficient number, since it is larger than the sum of its proper divisors (14839).

45555161 is a wasteful number, since it uses less digits than its factorization.

45555161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14838.

The product of its digits is 15000, while the sum is 32.

The square root of 45555161 is about 6749.4563484773. The cubic root of 45555161 is about 357.1460588132.

The spelling of 45555161 in words is "forty-five million, five hundred fifty-five thousand, one hundred sixty-one".