102697313 has 4 divisors (see below), whose sum is σ = 103138308. Its totient is φ = 102256320.

The previous prime is 102697307. The next prime is 102697321. The reversal of 102697313 is 313796201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313796201 = 311 ⋅1008991.

It can be written as a sum of positive squares in 2 ways, for example, as 37540129 + 65157184 = 6127^2 + 8072^2 .

It is a cyclic number.

It is not a de Polignac number, because 102697313 - 2¹⁰ = 102696289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102697313.

It is not an unprimeable number, because it can be changed into a prime (102697363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220148 + ... + 220613.

It is an arithmetic number, because the mean of its divisors is an integer number (25784577).

Almost surely, 2^102697313 is an apocalyptic number.

It is an amenable number.

102697313 is a deficient number, since it is larger than the sum of its proper divisors (440995).

102697313 is an equidigital number, since it uses as much as digits as its factorization.

102697313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440994.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 102697313 is about 10133.9682750638. The cubic root of 102697313 is about 468.2951862761.

The spelling of 102697313 in words is "one hundred two million, six hundred ninety-seven thousand, three hundred thirteen".