262081361 has 2 divisors, whose sum is σ = 262081362. Its totient is φ = 262081360.

The previous prime is 262081349. The next prime is 262081423. The reversal of 262081361 is 163180262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208513600 + 53567761 = 14440^2 + 7319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-262081361 is a prime.

It is a super-2 number, since 2×262081361² = 137373279567224642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (262081321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131040680 + 131040681.

It is an arithmetic number, because the mean of its divisors is an integer number (131040681).

Almost surely, 2^262081361 is an apocalyptic number.

It is an amenable number.

262081361 is a deficient number, since it is larger than the sum of its proper divisors (1).

262081361 is an equidigital number, since it uses as much as digits as its factorization.

262081361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 262081361 is about 16188.9271108372. The cubic root of 262081361 is about 639.9490201906.

The spelling of 262081361 in words is "two hundred sixty-two million, eighty-one thousand, three hundred sixty-one".