45209051 has 2 divisors, whose sum is σ = 45209052. Its totient is φ = 45209050.

The previous prime is 45209027. The next prime is 45209077. The reversal of 45209051 is 15090254.

It is an a-pointer prime, because the next prime (45209077) can be obtained adding 45209051 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45209051 - 2¹⁰ = 45208027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45209051.

It is not a weakly prime, because it can be changed into another prime (45209011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22604525 + 22604526.

It is an arithmetic number, because the mean of its divisors is an integer number (22604526).

Almost surely, 2^45209051 is an apocalyptic number.

45209051 is a deficient number, since it is larger than the sum of its proper divisors (1).

45209051 is an equidigital number, since it uses as much as digits as its factorization.

45209051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 45209051 is about 6723.7676194229. The cubic root of 45209051 is about 356.2392738742.

The spelling of 45209051 in words is "forty-five million, two hundred nine thousand, fifty-one".