102129795 has 32 divisors (see below), whose sum is σ = 192248640. Its totient is φ = 51264000.

The previous prime is 102129787. The next prime is 102129803. The reversal of 102129795 is 597921201.

It is an interprime number because it is at equal distance from previous prime (102129787) and next prime (102129803).

It is not a de Polignac number, because 102129795 - 2³ = 102129787 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19956 + ... + 24545.

It is an arithmetic number, because the mean of its divisors is an integer number (6007770).

Almost surely, 2^102129795 is an apocalyptic number.

102129795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102129795 is a deficient number, since it is larger than the sum of its proper divisors (90118845).

102129795 is a wasteful number, since it uses less digits than its factorization.

102129795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44532 (or 44526 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 102129795 is about 10105.9287054679. The cubic root of 102129795 is about 467.4309734418.

The spelling of 102129795 in words is "one hundred two million, one hundred twenty-nine thousand, seven hundred ninety-five".