45457143 has 4 divisors (see below), whose sum is σ = 60609528. Its totient is φ = 30304760.

The previous prime is 45457141. The next prime is 45457157. The reversal of 45457143 is 34175454.

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

It is a cyclic number.

It is not a de Polignac number, because 45457143 - 2¹ = 45457141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45457141) 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, 7576188 + ... + 7576193.

It is an arithmetic number, because the mean of its divisors is an integer number (15152382).

Almost surely, 2^45457143 is an apocalyptic number.

45457143 is a deficient number, since it is larger than the sum of its proper divisors (15152385).

45457143 is a wasteful number, since it uses less digits than its factorization.

45457143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15152384.

The product of its digits is 33600, while the sum is 33.

The square root of 45457143 is about 6742.1912610071. The cubic root of 45457143 is about 356.8897257662.

The spelling of 45457143 in words is "forty-five million, four hundred fifty-seven thousand, one hundred forty-three".