45272261 has 2 divisors, whose sum is σ = 45272262. Its totient is φ = 45272260.

The previous prime is 45272251. The next prime is 45272273. The reversal of 45272261 is 16227254.

It is a happy number.

45272261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40883236 + 4389025 = 6394^2 + 2095^2 .

It is a cyclic number.

It is not a de Polignac number, because 45272261 - 2²² = 41077957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45272251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22636130 + 22636131.

It is an arithmetic number, because the mean of its divisors is an integer number (22636131).

Almost surely, 2^45272261 is an apocalyptic number.

It is an amenable number.

45272261 is a deficient number, since it is larger than the sum of its proper divisors (1).

45272261 is an equidigital number, since it uses as much as digits as its factorization.

45272261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 45272261 is about 6728.4664671825. The cubic root of 45272261 is about 356.4052244050.

The spelling of 45272261 in words is "forty-five million, two hundred seventy-two thousand, two hundred sixty-one".