122638071 has 8 divisors (see below), whose sum is σ = 169156080. Its totient is φ = 78939392.

The previous prime is 122638067. The next prime is 122638079. The reversal of 122638071 is 170836221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122638071 - 2² = 122638067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122638079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704730 + ... + 704903.

It is an arithmetic number, because the mean of its divisors is an integer number (21144510).

Almost surely, 2^122638071 is an apocalyptic number.

122638071 is a deficient number, since it is larger than the sum of its proper divisors (46518009).

122638071 is a wasteful number, since it uses less digits than its factorization.

122638071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409665.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 122638071 is about 11074.2074659995. The cubic root of 122638071 is about 496.8307150437.

The spelling of 122638071 in words is "one hundred twenty-two million, six hundred thirty-eight thousand, seventy-one".