45128893 has 2 divisors, whose sum is σ = 45128894. Its totient is φ = 45128892.

The previous prime is 45128879. The next prime is 45128927. The reversal of 45128893 is 39882154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43731769 + 1397124 = 6613^2 + 1182^2 .

It is a cyclic number.

It is not a de Polignac number, because 45128893 - 2²¹ = 43031741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45128803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22564446 + 22564447.

It is an arithmetic number, because the mean of its divisors is an integer number (22564447).

Almost surely, 2^45128893 is an apocalyptic number.

It is an amenable number.

45128893 is a deficient number, since it is larger than the sum of its proper divisors (1).

45128893 is an equidigital number, since it uses as much as digits as its factorization.

45128893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 45128893 is about 6717.8041799386. The cubic root of 45128893 is about 356.0286057265.

The spelling of 45128893 in words is "forty-five million, one hundred twenty-eight thousand, eight hundred ninety-three".