102455123 has 4 divisors (see below), whose sum is σ = 102485568. Its totient is φ = 102424680.

The previous prime is 102455081. The next prime is 102455131. The reversal of 102455123 is 321554201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102455123 - 2⁸ = 102454867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102455153) 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, 9443 + ... + 17148.

It is an arithmetic number, because the mean of its divisors is an integer number (25621392).

Almost surely, 2^102455123 is an apocalyptic number.

102455123 is a deficient number, since it is larger than the sum of its proper divisors (30445).

102455123 is an equidigital number, since it uses as much as digits as its factorization.

102455123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30444.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 102455123 is about 10122.0118059603. The cubic root of 102455123 is about 467.9267712998.

It can be divided in two parts, 10245 and 5123, that multiplied together give a triangular number (52485135 = T₁₀₂₄₅).

The spelling of 102455123 in words is "one hundred two million, four hundred fifty-five thousand, one hundred twenty-three".