123496187 has 2 divisors, whose sum is σ = 123496188. Its totient is φ = 123496186.

The previous prime is 123496097. The next prime is 123496199. The reversal of 123496187 is 781694321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123496187 - 2¹² = 123492091 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (123490187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61748093 + 61748094.

It is an arithmetic number, because the mean of its divisors is an integer number (61748094).

Almost surely, 2^123496187 is an apocalyptic number.

123496187 is a deficient number, since it is larger than the sum of its proper divisors (1).

123496187 is an equidigital number, since it uses as much as digits as its factorization.

123496187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 123496187 is about 11112.8838291417. The cubic root of 123496187 is about 497.9868211004.

The spelling of 123496187 in words is "one hundred twenty-three million, four hundred ninety-six thousand, one hundred eighty-seven".