45075661 has 2 divisors, whose sum is σ = 45075662. Its totient is φ = 45075660.

The previous prime is 45075649. The next prime is 45075671. The reversal of 45075661 is 16657054.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26842761 + 18232900 = 5181^2 + 4270^2 .

It is a cyclic number.

It is not a de Polignac number, because 45075661 - 2¹³ = 45067469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45075631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22537830 + 22537831.

It is an arithmetic number, because the mean of its divisors is an integer number (22537831).

Almost surely, 2^45075661 is an apocalyptic number.

It is an amenable number.

45075661 is a deficient number, since it is larger than the sum of its proper divisors (1).

45075661 is an equidigital number, since it uses as much as digits as its factorization.

45075661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 45075661 is about 6713.8410019898. The cubic root of 45075661 is about 355.8885655729. Note that the first 3 decimals are identical.

The spelling of 45075661 in words is "forty-five million, seventy-five thousand, six hundred sixty-one".