102135399 has 8 divisors (see below), whose sum is σ = 138750192. Its totient is φ = 66805440.

The previous prime is 102135391. The next prime is 102135409. The reversal of 102135399 is 993531201.

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

It is not a de Polignac number, because 102135399 - 2³ = 102135391 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102135391) 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, 321022 + ... + 321339.

It is an arithmetic number, because the mean of its divisors is an integer number (17343774).

Almost surely, 2^102135399 is an apocalyptic number.

102135399 is a deficient number, since it is larger than the sum of its proper divisors (36614793).

102135399 is an equidigital number, since it uses as much as digits as its factorization.

102135399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642417.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 102135399 is about 10106.2059646536. The cubic root of 102135399 is about 467.4395228087.

The spelling of 102135399 in words is "one hundred two million, one hundred thirty-five thousand, three hundred ninety-nine".