45540769 has 2 divisors, whose sum is σ = 45540770. Its totient is φ = 45540768.

The previous prime is 45540751. The next prime is 45540779. The reversal of 45540769 is 96704554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42081169 + 3459600 = 6487^2 + 1860^2 .

It is a cyclic number.

It is not a de Polignac number, because 45540769 - 2⁷ = 45540641 is a prime.

It is a super-2 number, since 2×45540769² = 4147923282222722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45540779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22770384 + 22770385.

It is an arithmetic number, because the mean of its divisors is an integer number (22770385).

Almost surely, 2^45540769 is an apocalyptic number.

It is an amenable number.

45540769 is a deficient number, since it is larger than the sum of its proper divisors (1).

45540769 is an equidigital number, since it uses as much as digits as its factorization.

45540769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 45540769 is about 6748.3901043138. The cubic root of 45540769 is about 357.1084444328.

The spelling of 45540769 in words is "forty-five million, five hundred forty thousand, seven hundred sixty-nine".