102456121 has 4 divisors (see below), whose sum is σ = 102845952. Its totient is φ = 102066292.

The previous prime is 102456119. The next prime is 102456181. The reversal of 102456121 is 121654201.

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 102456121 - 2¹ = 102456119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102456092 and 102456101.

It is not an unprimeable number, because it can be changed into a prime (102456181) 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, 194521 + ... + 195046.

It is an arithmetic number, because the mean of its divisors is an integer number (25711488).

Almost surely, 2^102456121 is an apocalyptic number.

It is an amenable number.

102456121 is a deficient number, since it is larger than the sum of its proper divisors (389831).

102456121 is an equidigital number, since it uses as much as digits as its factorization.

102456121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389830.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 102456121 is about 10122.0611043404. The cubic root of 102456121 is about 467.9282906298.

The spelling of 102456121 in words is "one hundred two million, four hundred fifty-six thousand, one hundred twenty-one".