457280261 has 2 divisors, whose sum is σ = 457280262. Its totient is φ = 457280260.

The previous prime is 457280209. The next prime is 457280279. The reversal of 457280261 is 162082754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420496036 + 36784225 = 20506^2 + 6065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457280261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457280281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228640130 + 228640131.

It is an arithmetic number, because the mean of its divisors is an integer number (228640131).

Almost surely, 2^457280261 is an apocalyptic number.

It is an amenable number.

457280261 is a deficient number, since it is larger than the sum of its proper divisors (1).

457280261 is an equidigital number, since it uses as much as digits as its factorization.

457280261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 457280261 is about 21384.1123500603. The cubic root of 457280261 is about 770.4198873675.

The spelling of 457280261 in words is "four hundred fifty-seven million, two hundred eighty thousand, two hundred sixty-one".