45272779 has 2 divisors, whose sum is σ = 45272780. Its totient is φ = 45272778.

The previous prime is 45272749. The next prime is 45272783. The reversal of 45272779 is 97727254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45272779 - 2²³ = 36884171 is a prime.

It is not a weakly prime, because it can be changed into another prime (45272749) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22636389 + 22636390.

It is an arithmetic number, because the mean of its divisors is an integer number (22636390).

Almost surely, 2^45272779 is an apocalyptic number.

45272779 is a deficient number, since it is larger than the sum of its proper divisors (1).

45272779 is an equidigital number, since it uses as much as digits as its factorization.

45272779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 43.

The square root of 45272779 is about 6728.5049602419. The cubic root of 45272779 is about 356.4065837157.

The spelling of 45272779 in words is "forty-five million, two hundred seventy-two thousand, seven hundred seventy-nine".