102955817 has 4 divisors (see below), whose sum is σ = 103026000. Its totient is φ = 102885636.

The previous prime is 102955807. The next prime is 102955819. The reversal of 102955817 is 718559201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102955817 - 2⁶ = 102955753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102955819) 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, 32843 + ... + 35840.

It is an arithmetic number, because the mean of its divisors is an integer number (25756500).

Almost surely, 2^102955817 is an apocalyptic number.

It is an amenable number.

102955817 is a deficient number, since it is larger than the sum of its proper divisors (70183).

102955817 is an equidigital number, since it uses as much as digits as its factorization.

102955817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70182.

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 102955817 is about 10146.7145914330. The cubic root of 102955817 is about 468.6877793088.

It can be divided in two parts, 1029558 and 17, that multiplied together give a triangular number (17502486 = T₅₉₁₆).

The spelling of 102955817 in words is "one hundred two million, nine hundred fifty-five thousand, eight hundred seventeen".