122791847 has 2 divisors, whose sum is σ = 122791848. Its totient is φ = 122791846.

The previous prime is 122791793. The next prime is 122791853. The reversal of 122791847 is 748197221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122791847 - 2⁶ = 122791783 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122791247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61395923 + 61395924.

It is an arithmetic number, because the mean of its divisors is an integer number (61395924).

Almost surely, 2^122791847 is an apocalyptic number.

122791847 is a deficient number, since it is larger than the sum of its proper divisors (1).

122791847 is an equidigital number, since it uses as much as digits as its factorization.

122791847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 41.

The square root of 122791847 is about 11081.1482708246. The cubic root of 122791847 is about 497.0382871532.

The spelling of 122791847 in words is "one hundred twenty-two million, seven hundred ninety-one thousand, eight hundred forty-seven".