45155779 has 2 divisors, whose sum is σ = 45155780. Its totient is φ = 45155778.

The previous prime is 45155741. The next prime is 45155783. The reversal of 45155779 is 97755154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45155779 - 2¹³ = 45147587 is a prime.

It is not a weakly prime, because it can be changed into another prime (45155879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22577889 + 22577890.

It is an arithmetic number, because the mean of its divisors is an integer number (22577890).

Almost surely, 2^45155779 is an apocalyptic number.

45155779 is a deficient number, since it is larger than the sum of its proper divisors (1).

45155779 is an equidigital number, since it uses as much as digits as its factorization.

45155779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 220500, while the sum is 43.

The square root of 45155779 is about 6719.8049822893. The cubic root of 45155779 is about 356.0992942527.

The spelling of 45155779 in words is "forty-five million, one hundred fifty-five thousand, seven hundred seventy-nine".