122747231 has 2 divisors, whose sum is σ = 122747232. Its totient is φ = 122747230.

The previous prime is 122747173. The next prime is 122747249. The reversal of 122747231 is 132747221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122747231 - 2¹⁴ = 122730847 is a prime.

It is a super-2 number, since 2×122747231² = 30133765436334722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122747194 and 122747203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122747431) 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, 61373615 + 61373616.

It is an arithmetic number, because the mean of its divisors is an integer number (61373616).

Almost surely, 2^122747231 is an apocalyptic number.

122747231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122747231 is an equidigital number, since it uses as much as digits as its factorization.

122747231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 122747231 is about 11079.1349391548. The cubic root of 122747231 is about 496.9780808036.

The spelling of 122747231 in words is "one hundred twenty-two million, seven hundred forty-seven thousand, two hundred thirty-one".