45342973 has 4 divisors (see below), whose sum is σ = 48830908. Its totient is φ = 41855040.

The previous prime is 45342971. The next prime is 45342977. The reversal of 45342973 is 37924354.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1954404 + 43388569 = 1398^2 + 6587^2 .

It is a cyclic number.

It is not a de Polignac number, because 45342973 - 2¹ = 45342971 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 (45342971) 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, 1743948 + ... + 1743973.

It is an arithmetic number, because the mean of its divisors is an integer number (12207727).

Almost surely, 2^45342973 is an apocalyptic number.

It is an amenable number.

45342973 is a deficient number, since it is larger than the sum of its proper divisors (3487935).

45342973 is a wasteful number, since it uses less digits than its factorization.

45342973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487934.

The product of its digits is 90720, while the sum is 37.

The square root of 45342973 is about 6733.7191061107. The cubic root of 45342973 is about 356.5906876132.

The spelling of 45342973 in words is "forty-five million, three hundred forty-two thousand, nine hundred seventy-three".