102345999 has 8 divisors (see below), whose sum is σ = 155955840. Its totient is φ = 58483416.

The previous prime is 102345979. The next prime is 102346007. The reversal of 102345999 is 999543201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102345999 - 2¹⁶ = 102280463 is a prime.

It is a super-2 number, since 2×102345999² = 20949407022616002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102345999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102345979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436789 + ... + 2436830.

It is an arithmetic number, because the mean of its divisors is an integer number (19494480).

Almost surely, 2^102345999 is an apocalyptic number.

102345999 is a deficient number, since it is larger than the sum of its proper divisors (53609841).

102345999 is an equidigital number, since it uses as much as digits as its factorization.

102345999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873629.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 102345999 is about 10116.6199394857. The cubic root of 102345999 is about 467.7605841316.

The spelling of 102345999 in words is "one hundred two million, three hundred forty-five thousand, nine hundred ninety-nine".