122747477 has 2 divisors, whose sum is σ = 122747478. Its totient is φ = 122747476.

The previous prime is 122747461. The next prime is 122747483. The reversal of 122747477 is 774747221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121132036 + 1615441 = 11006^2 + 1271^2 .

It is a cyclic number.

It is not a de Polignac number, because 122747477 - 2⁴ = 122747461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122747437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61373738 + 61373739.

It is an arithmetic number, because the mean of its divisors is an integer number (61373739).

Almost surely, 2^122747477 is an apocalyptic number.

It is an amenable number.

122747477 is a deficient number, since it is larger than the sum of its proper divisors (1).

122747477 is an equidigital number, since it uses as much as digits as its factorization.

122747477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153664, while the sum is 41.

The square root of 122747477 is about 11079.1460410990. The cubic root of 122747477 is about 496.9784128044.

The spelling of 122747477 in words is "one hundred twenty-two million, seven hundred forty-seven thousand, four hundred seventy-seven".