45542171 has 4 divisors (see below), whose sum is σ = 45984432. Its totient is φ = 45099912.

The previous prime is 45542143. The next prime is 45542197. The reversal of 45542171 is 17124554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45542171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45542141) 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, 220976 + ... + 221181.

It is an arithmetic number, because the mean of its divisors is an integer number (11496108).

Almost surely, 2^45542171 is an apocalyptic number.

45542171 is a deficient number, since it is larger than the sum of its proper divisors (442261).

45542171 is a wasteful number, since it uses less digits than its factorization.

45542171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442260.

The product of its digits is 5600, while the sum is 29.

The square root of 45542171 is about 6748.4939801411. The cubic root of 45542171 is about 357.1121089947.

The spelling of 45542171 in words is "forty-five million, five hundred forty-two thousand, one hundred seventy-one".