262078081 has 2 divisors, whose sum is σ = 262078082. Its totient is φ = 262078080.

The previous prime is 262078051. The next prime is 262078087. The reversal of 262078081 is 180870262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219306481 + 42771600 = 14809^2 + 6540^2 .

It is a cyclic number.

It is not a de Polignac number, because 262078081 - 2¹¹ = 262076033 is a prime.

It is a super-2 number, since 2×262078081² = 137369841081285122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (262078087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131039040 + 131039041.

It is an arithmetic number, because the mean of its divisors is an integer number (131039041).

Almost surely, 2^262078081 is an apocalyptic number.

It is an amenable number.

262078081 is a deficient number, since it is larger than the sum of its proper divisors (1).

262078081 is an equidigital number, since it uses as much as digits as its factorization.

262078081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 262078081 is about 16188.8258067100. The cubic root of 262078081 is about 639.9463504833.

The spelling of 262078081 in words is "two hundred sixty-two million, seventy-eight thousand, eighty-one".