45909161 has 4 divisors (see below), whose sum is σ = 46111632. Its totient is φ = 45706692.

The previous prime is 45909121. The next prime is 45909167. The reversal of 45909161 is 16190954.

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-45909161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45909167) 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, 100895 + ... + 101348.

It is an arithmetic number, because the mean of its divisors is an integer number (11527908).

Almost surely, 2^45909161 is an apocalyptic number.

It is an amenable number.

45909161 is a deficient number, since it is larger than the sum of its proper divisors (202471).

45909161 is a wasteful number, since it uses less digits than its factorization.

45909161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202470.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 45909161 is about 6775.6299338143. The cubic root of 45909161 is about 358.0687762540.

The spelling of 45909161 in words is "forty-five million, nine hundred nine thousand, one hundred sixty-one".