102255117 has 4 divisors (see below), whose sum is σ = 136340160. Its totient is φ = 68170076.

The previous prime is 102255113. The next prime is 102255137. The reversal of 102255117 is 711552201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711552201 = 3 ⋅237184067.

It is a cyclic number.

It is not a de Polignac number, because 102255117 - 2² = 102255113 is a prime.

It is a super-2 number, since 2×102255117² = 20912217905367378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102255113) 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, 17042517 + ... + 17042522.

It is an arithmetic number, because the mean of its divisors is an integer number (34085040).

Almost surely, 2^102255117 is an apocalyptic number.

It is an amenable number.

102255117 is a deficient number, since it is larger than the sum of its proper divisors (34085043).

102255117 is an equidigital number, since it uses as much as digits as its factorization.

102255117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34085042.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 102255117 is about 10112.1272242788. The cubic root of 102255117 is about 467.6220878962.

The spelling of 102255117 in words is "one hundred two million, two hundred fifty-five thousand, one hundred seventeen".