45512543 has 4 divisors (see below), whose sum is σ = 47907960. Its totient is φ = 43117128.

The previous prime is 45512539. The next prime is 45512549. The reversal of 45512543 is 34521554.

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 45512543 - 2² = 45512539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45512549) 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, 1197680 + ... + 1197717.

It is an arithmetic number, because the mean of its divisors is an integer number (11976990).

Almost surely, 2^45512543 is an apocalyptic number.

45512543 is a deficient number, since it is larger than the sum of its proper divisors (2395417).

45512543 is a wasteful number, since it uses less digits than its factorization.

45512543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395416.

The product of its digits is 12000, while the sum is 29.

The square root of 45512543 is about 6746.2984665667. The cubic root of 45512543 is about 357.0346510212.

The spelling of 45512543 in words is "forty-five million, five hundred twelve thousand, five hundred forty-three".