102099953 has 2 divisors, whose sum is σ = 102099954. Its totient is φ = 102099952.

The previous prime is 102099941. The next prime is 102099961. The reversal of 102099953 is 359990201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101949409 + 150544 = 10097^2 + 388^2 .

It is an emirp because it is prime and its reverse (359990201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102099953 - 2⁴ = 102099937 is a prime.

It is not a weakly prime, because it can be changed into another prime (102029953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51049976 + 51049977.

It is an arithmetic number, because the mean of its divisors is an integer number (51049977).

Almost surely, 2^102099953 is an apocalyptic number.

It is an amenable number.

102099953 is a deficient number, since it is larger than the sum of its proper divisors (1).

102099953 is an equidigital number, since it uses as much as digits as its factorization.

102099953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 102099953 is about 10104.4521375481. The cubic root of 102099953 is about 467.3854417275.

It can be divided in two parts, 1020 and 99953, that multiplied together give a triangular number (101952060 = T₁₄₂₇₉).

The spelling of 102099953 in words is "one hundred two million, ninety-nine thousand, nine hundred fifty-three".