123272047 has 2 divisors, whose sum is σ = 123272048. Its totient is φ = 123272046.

The previous prime is 123272029. The next prime is 123272053. The reversal of 123272047 is 740272321.

It is a strong prime.

It is an emirp because it is prime and its reverse (740272321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123272047 - 2⁷ = 123271919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123270047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61636023 + 61636024.

It is an arithmetic number, because the mean of its divisors is an integer number (61636024).

Almost surely, 2^123272047 is an apocalyptic number.

123272047 is a deficient number, since it is larger than the sum of its proper divisors (1).

123272047 is an equidigital number, since it uses as much as digits as its factorization.

123272047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 123272047 is about 11102.7945581281. The cubic root of 123272047 is about 497.6853641225.

The spelling of 123272047 in words is "one hundred twenty-three million, two hundred seventy-two thousand, forty-seven".