122236787 has 2 divisors, whose sum is σ = 122236788. Its totient is φ = 122236786.

The previous prime is 122236717. The next prime is 122236799. The reversal of 122236787 is 787632221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122236787 - 2¹⁶ = 122171251 is a prime.

It is equal to p_6961763 and since 122236787 and 6961763 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122236787.

It is not a weakly prime, because it can be changed into another prime (122236717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61118393 + 61118394.

It is an arithmetic number, because the mean of its divisors is an integer number (61118394).

Almost surely, 2^122236787 is an apocalyptic number.

122236787 is a deficient number, since it is larger than the sum of its proper divisors (1).

122236787 is an equidigital number, since it uses as much as digits as its factorization.

122236787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 122236787 is about 11056.0746650880. The cubic root of 122236787 is about 496.2882297065.

The spelling of 122236787 in words is "one hundred twenty-two million, two hundred thirty-six thousand, seven hundred eighty-seven".