123995197 has 12 divisors (see below), whose sum is σ = 132251196. Its totient is φ = 116225280.

The previous prime is 123995189. The next prime is 123995203. The reversal of 123995197 is 791599321.

It can be written as a sum of positive squares in 2 ways, for example, as 53787556 + 70207641 = 7334^2 + 8379^2 .

It is not a de Polignac number, because 123995197 - 2³ = 123995189 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 (123995107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33247 + ... + 36787.

It is an arithmetic number, because the mean of its divisors is an integer number (11020933).

Almost surely, 2^123995197 is an apocalyptic number.

It is an amenable number.

123995197 is a deficient number, since it is larger than the sum of its proper divisors (8255999).

123995197 is an equidigital number, since it uses as much as digits as its factorization.

123995197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3657 counting only the distinct ones).

The product of its digits is 153090, while the sum is 46.

The square root of 123995197 is about 11135.3130625052. The cubic root of 123995197 is about 498.6566567567.

The spelling of 123995197 in words is "one hundred twenty-three million, nine hundred ninety-five thousand, one hundred ninety-seven".