701312681 has 2 divisors, whose sum is σ = 701312682. Its totient is φ = 701312680.

The previous prime is 701312627. The next prime is 701312687. The reversal of 701312681 is 186213107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354757225 + 346555456 = 18835^2 + 18616^2 .

It is a cyclic number.

It is not a de Polignac number, because 701312681 - 2²² = 697118377 is a prime.

It is a super-2 number, since 2×701312681² = 983678953062815522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (701312687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350656340 + 350656341.

It is an arithmetic number, because the mean of its divisors is an integer number (350656341).

Almost surely, 2^701312681 is an apocalyptic number.

It is an amenable number.

701312681 is a deficient number, since it is larger than the sum of its proper divisors (1).

701312681 is an equidigital number, since it uses as much as digits as its factorization.

701312681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 701312681 is about 26482.3088306137. The cubic root of 701312681 is about 888.4586717004.

Adding to 701312681 its reverse (186213107), we get a palindrome (887525788).

The spelling of 701312681 in words is "seven hundred one million, three hundred twelve thousand, six hundred eighty-one".