123272251 has 2 divisors, whose sum is σ = 123272252. Its totient is φ = 123272250.

The previous prime is 123272231. The next prime is 123272269. The reversal of 123272251 is 152272321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123272251 - 2¹⁵ = 123239483 is a prime.

It is equal to p_7017325 and since 123272251 and 7017325 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123272221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61636125 + 61636126.

It is an arithmetic number, because the mean of its divisors is an integer number (61636126).

Almost surely, 2^123272251 is an apocalyptic number.

123272251 is a deficient number, since it is larger than the sum of its proper divisors (1).

123272251 is an equidigital number, since it uses as much as digits as its factorization.

123272251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 123272251 is about 11102.8037450006. The cubic root of 123272251 is about 497.6856386583.

The spelling of 123272251 in words is "one hundred twenty-three million, two hundred seventy-two thousand, two hundred fifty-one".