122729994 has 12 divisors (see below), whose sum is σ = 265915026. Its totient is φ = 40909992.

The previous prime is 122729993. The next prime is 122730007. The reversal of 122729994 is 499927221.

It can be written as a sum of positive squares in only one way, i.e., 101909025 + 20820969 = 10095^2 + 4563^2 .

It is not an unprimeable number, because it can be changed into a prime (122729993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3409149 + ... + 3409184.

Almost surely, 2^122729994 is an apocalyptic number.

122729994 is an abundant number, since it is smaller than the sum of its proper divisors (143185032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122729994 is a wasteful number, since it uses less digits than its factorization.

122729994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818341 (or 6818338 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 122729994 is about 11078.3570081488. The cubic root of 122729994 is about 496.9548167019.

The spelling of 122729994 in words is "one hundred twenty-two million, seven hundred twenty-nine thousand, nine hundred ninety-four".