102193897 has 8 divisors (see below), whose sum is σ = 110496960. Its totient is φ = 93954000.

The previous prime is 102193891. The next prime is 102193901. The reversal of 102193897 is 798391201.

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 102193897 - 2¹⁹ = 101669609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102193891) 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, 12397 + ... + 18922.

It is an arithmetic number, because the mean of its divisors is an integer number (13812120).

Almost surely, 2^102193897 is an apocalyptic number.

It is an amenable number.

102193897 is a deficient number, since it is larger than the sum of its proper divisors (8303063).

102193897 is a wasteful number, since it uses less digits than its factorization.

102193897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31583.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 102193897 is about 10109.0997126351. The cubic root of 102193897 is about 467.5287476960.

The spelling of 102193897 in words is "one hundred two million, one hundred ninety-three thousand, eight hundred ninety-seven".