45277261 has 2 divisors, whose sum is σ = 45277262. Its totient is φ = 45277260.

The previous prime is 45277241. The next prime is 45277277. The reversal of 45277261 is 16277254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30184036 + 15093225 = 5494^2 + 3885^2 .

It is a cyclic number.

It is not a de Polignac number, because 45277261 - 2⁵ = 45277229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45277201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22638630 + 22638631.

It is an arithmetic number, because the mean of its divisors is an integer number (22638631).

Almost surely, 2^45277261 is an apocalyptic number.

It is an amenable number.

45277261 is a deficient number, since it is larger than the sum of its proper divisors (1).

45277261 is an equidigital number, since it uses as much as digits as its factorization.

45277261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 45277261 is about 6728.8380126141. The cubic root of 45277261 is about 356.4183447314.

The spelling of 45277261 in words is "forty-five million, two hundred seventy-seven thousand, two hundred sixty-one".