102136693 has 2 divisors, whose sum is σ = 102136694. Its totient is φ = 102136692.

The previous prime is 102136633. The next prime is 102136717. The reversal of 102136693 is 396631201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86825124 + 15311569 = 9318^2 + 3913^2 .

It is an emirp because it is prime and its reverse (396631201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102136693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102136603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51068346 + 51068347.

It is an arithmetic number, because the mean of its divisors is an integer number (51068347).

Almost surely, 2^102136693 is an apocalyptic number.

It is an amenable number.

102136693 is a deficient number, since it is larger than the sum of its proper divisors (1).

102136693 is an equidigital number, since it uses as much as digits as its factorization.

102136693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 102136693 is about 10106.2699845195. The cubic root of 102136693 is about 467.4414968686.

Adding to 102136693 its reverse (396631201), we get a palindrome (498767894).

The spelling of 102136693 in words is "one hundred two million, one hundred thirty-six thousand, six hundred ninety-three".