45372073 has 2 divisors, whose sum is σ = 45372074. Its totient is φ = 45372072.

The previous prime is 45372059. The next prime is 45372113. The reversal of 45372073 is 37027354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38044224 + 7327849 = 6168^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 45372073 - 2⁹ = 45371561 is a prime.

It is not a weakly prime, because it can be changed into another prime (45372673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22686036 + 22686037.

It is an arithmetic number, because the mean of its divisors is an integer number (22686037).

Almost surely, 2^45372073 is an apocalyptic number.

It is an amenable number.

45372073 is a deficient number, since it is larger than the sum of its proper divisors (1).

45372073 is an equidigital number, since it uses as much as digits as its factorization.

45372073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 45372073 is about 6735.8795268324. The cubic root of 45372073 is about 356.6669549983. Note that the first 3 decimals are identical.

The spelling of 45372073 in words is "forty-five million, three hundred seventy-two thousand, seventy-three".