102125399 has 8 divisors (see below), whose sum is σ = 108349440. Its totient is φ = 95986296.

The previous prime is 102125389. The next prime is 102125411. The reversal of 102125399 is 993521201.

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

It is a cyclic number.

It is not a de Polignac number, because 102125399 - 2¹² = 102121303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102125369) 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, 18749 + ... + 23574.

It is an arithmetic number, because the mean of its divisors is an integer number (13543680).

Almost surely, 2^102125399 is an apocalyptic number.

102125399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102125399 is a deficient number, since it is larger than the sum of its proper divisors (6224041).

102125399 is a wasteful number, since it uses less digits than its factorization.

102125399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42469.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 102125399 is about 10105.7112070354. The cubic root of 102125399 is about 467.4242667603.

The spelling of 102125399 in words is "one hundred two million, one hundred twenty-five thousand, three hundred ninety-nine".