45124739 has 4 divisors (see below), whose sum is σ = 49227000. Its totient is φ = 41022480.

The previous prime is 45124711. The next prime is 45124741. The reversal of 45124739 is 93742154.

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 45124739 - 2²⁰ = 44076163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45124699 and 45124708.

It is not an unprimeable number, because it can be changed into a prime (45124139) 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, 2051114 + ... + 2051135.

It is an arithmetic number, because the mean of its divisors is an integer number (12306750).

Almost surely, 2^45124739 is an apocalyptic number.

45124739 is a deficient number, since it is larger than the sum of its proper divisors (4102261).

45124739 is a wasteful number, since it uses less digits than its factorization.

45124739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102260.

The product of its digits is 30240, while the sum is 35.

The square root of 45124739 is about 6717.4949944157. The cubic root of 45124739 is about 356.0176815483.

The spelling of 45124739 in words is "forty-five million, one hundred twenty-four thousand, seven hundred thirty-nine".