122042747 has 2 divisors, whose sum is σ = 122042748. Its totient is φ = 122042746.

The previous prime is 122042717. The next prime is 122042749. The reversal of 122042747 is 747240221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122042747 - 2¹⁰ = 122041723 is a prime.

It is a super-3 number, since 3×122042747³ (a number of 25 digits) contains 333 as substring.

Together with 122042749, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_6951350 and since 122042747 and 6951350 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (122042749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61021373 + 61021374.

It is an arithmetic number, because the mean of its divisors is an integer number (61021374).

Almost surely, 2^122042747 is an apocalyptic number.

122042747 is a deficient number, since it is larger than the sum of its proper divisors (1).

122042747 is an equidigital number, since it uses as much as digits as its factorization.

122042747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 122042747 is about 11047.2959134804. The cubic root of 122042747 is about 496.0254861926.

Adding to 122042747 its reverse (747240221), we get a palindrome (869282968).

The spelling of 122042747 in words is "one hundred twenty-two million, forty-two thousand, seven hundred forty-seven".