102945197 has 4 divisors (see below), whose sum is σ = 103152000. Its totient is φ = 102738396.

The previous prime is 102945169. The next prime is 102945223. The reversal of 102945197 is 791549201.

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 102945197 - 2¹⁰ = 102944173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102945197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102945107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102653 + ... + 103650.

It is an arithmetic number, because the mean of its divisors is an integer number (25788000).

Almost surely, 2^102945197 is an apocalyptic number.

It is an amenable number.

102945197 is a deficient number, since it is larger than the sum of its proper divisors (206803).

102945197 is an equidigital number, since it uses as much as digits as its factorization.

102945197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206802.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 102945197 is about 10146.1912558359. The cubic root of 102945197 is about 468.6716635434.

The spelling of 102945197 in words is "one hundred two million, nine hundred forty-five thousand, one hundred ninety-seven".