102456115 has 4 divisors (see below), whose sum is σ = 122947344. Its totient is φ = 81964888.

The previous prime is 102456103. The next prime is 102456119. The reversal of 102456115 is 511654201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511654201 = 5711 ⋅89591.

It is a cyclic number.

It is not a de Polignac number, because 102456115 - 2²³ = 94067507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102456115.

It is not an unprimeable number, because it can be changed into a prime (102456119) 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, 10245607 + ... + 10245616.

It is an arithmetic number, because the mean of its divisors is an integer number (30736836).

Almost surely, 2^102456115 is an apocalyptic number.

102456115 is a deficient number, since it is larger than the sum of its proper divisors (20491229).

102456115 is an equidigital number, since it uses as much as digits as its factorization.

102456115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20491228.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 102456115 is about 10122.0608079580. The cubic root of 102456115 is about 467.9282814955.

The spelling of 102456115 in words is "one hundred two million, four hundred fifty-six thousand, one hundred fifteen".