102889197 has 10 divisors (see below), whose sum is σ = 153698798. Its totient is φ = 68592744.

The previous prime is 102889183. The next prime is 102889211. The reversal of 102889197 is 791988201.

It is an interprime number because it is at equal distance from previous prime (102889183) and next prime (102889211).

It can be written as a sum of positive squares in only one way, i.e., 100520676 + 2368521 = 10026^2 + 1539^2 .

It is not a de Polignac number, because 102889197 - 2⁴ = 102889181 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 (102889147) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 635038 + ... + 635199.

Almost surely, 2^102889197 is an apocalyptic number.

It is an amenable number.

102889197 is a deficient number, since it is larger than the sum of its proper divisors (50809601).

102889197 is an equidigital number, since it uses as much as digits as its factorization.

102889197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270249 (or 1270240 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 102889197 is about 10143.4312241963. The cubic root of 102889197 is about 468.5866656533.

The spelling of 102889197 in words is "one hundred two million, eight hundred eighty-nine thousand, one hundred ninety-seven".