262051381 has 2 divisors, whose sum is σ = 262051382. Its totient is φ = 262051380.

The previous prime is 262051253. The next prime is 262051393. The reversal of 262051381 is 183150262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252651025 + 9400356 = 15895^2 + 3066^2 .

It is a cyclic number.

It is not a de Polignac number, because 262051381 - 2⁷ = 262051253 is a prime.

It is a super-2 number, since 2×262051381² = 137341852568014322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (262051681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131025690 + 131025691.

It is an arithmetic number, because the mean of its divisors is an integer number (131025691).

Almost surely, 2^262051381 is an apocalyptic number.

It is an amenable number.

262051381 is a deficient number, since it is larger than the sum of its proper divisors (1).

262051381 is an equidigital number, since it uses as much as digits as its factorization.

262051381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 262051381 is about 16188.0011428218. The cubic root of 262051381 is about 639.9246175863.

The spelling of 262051381 in words is "two hundred sixty-two million, fifty-one thousand, three hundred eighty-one".