102194997 has 4 divisors (see below), whose sum is σ = 136260000. Its totient is φ = 68129996.

The previous prime is 102194993. The next prime is 102195017. The reversal of 102194997 is 799491201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102194997 - 2² = 102194993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102194993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17032497 + ... + 17032502.

It is an arithmetic number, because the mean of its divisors is an integer number (34065000).

Almost surely, 2^102194997 is an apocalyptic number.

It is an amenable number.

102194997 is a deficient number, since it is larger than the sum of its proper divisors (34065003).

102194997 is an equidigital number, since it uses as much as digits as its factorization.

102194997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34065002.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 102194997 is about 10109.1541189162. The cubic root of 102194997 is about 467.5304251601.

The spelling of 102194997 in words is "one hundred two million, one hundred ninety-four thousand, nine hundred ninety-seven".