123172267 has 2 divisors, whose sum is σ = 123172268. Its totient is φ = 123172266.

The previous prime is 123172213. The next prime is 123172279. The reversal of 123172267 is 762271321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123172267 - 2²³ = 114783659 is a prime.

It is not a weakly prime, because it can be changed into another prime (123172067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61586133 + 61586134.

It is an arithmetic number, because the mean of its divisors is an integer number (61586134).

Almost surely, 2^123172267 is an apocalyptic number.

123172267 is a deficient number, since it is larger than the sum of its proper divisors (1).

123172267 is an equidigital number, since it uses as much as digits as its factorization.

123172267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 123172267 is about 11098.3001851635. The cubic root of 123172267 is about 497.5510475131.

The spelling of 123172267 in words is "one hundred twenty-three million, one hundred seventy-two thousand, two hundred sixty-seven".