45445901 has 2 divisors, whose sum is σ = 45445902. Its totient is φ = 45445900.

The previous prime is 45445843. The next prime is 45445919. The reversal of 45445901 is 10954454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40627876 + 4818025 = 6374^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 45445901 - 2⁶ = 45445837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45445921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722950 + 22722951.

It is an arithmetic number, because the mean of its divisors is an integer number (22722951).

Almost surely, 2^45445901 is an apocalyptic number.

It is an amenable number.

45445901 is a deficient number, since it is larger than the sum of its proper divisors (1).

45445901 is an equidigital number, since it uses as much as digits as its factorization.

45445901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 45445901 is about 6741.3575042420. The cubic root of 45445901 is about 356.8603025570.

The spelling of 45445901 in words is "forty-five million, four hundred forty-five thousand, nine hundred one".