102699253 has 2 divisors, whose sum is σ = 102699254. Its totient is φ = 102699252.

The previous prime is 102699241. The next prime is 102699257. The reversal of 102699253 is 352996201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79869969 + 22829284 = 8937^2 + 4778^2 .

It is an emirp because it is prime and its reverse (352996201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102699253 - 2²⁵ = 69144821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102699257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51349626 + 51349627.

It is an arithmetic number, because the mean of its divisors is an integer number (51349627).

Almost surely, 2^102699253 is an apocalyptic number.

It is an amenable number.

102699253 is a deficient number, since it is larger than the sum of its proper divisors (1).

102699253 is an equidigital number, since it uses as much as digits as its factorization.

102699253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 102699253 is about 10134.0639922985. The cubic root of 102699253 is about 468.2981350288.

The spelling of 102699253 in words is "one hundred two million, six hundred ninety-nine thousand, two hundred fifty-three".