122618739 has 8 divisors (see below), whose sum is σ = 173108880. Its totient is φ = 76937216.

The previous prime is 122618729. The next prime is 122618791. The reversal of 122618739 is 937816221.

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

It is a cyclic number.

It is not a de Polignac number, because 122618739 - 2¹² = 122614643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122618697 and 122618706.

It is not an unprimeable number, because it can be changed into a prime (122618729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202094 + ... + 1202195.

It is an arithmetic number, because the mean of its divisors is an integer number (21638610).

Almost surely, 2^122618739 is an apocalyptic number.

122618739 is a deficient number, since it is larger than the sum of its proper divisors (50490141).

122618739 is a wasteful number, since it uses less digits than its factorization.

122618739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404309.

The product of its digits is 36288, while the sum is 39.

The square root of 122618739 is about 11073.3345926148. The cubic root of 122618739 is about 496.8046077726.

The spelling of 122618739 in words is "one hundred twenty-two million, six hundred eighteen thousand, seven hundred thirty-nine".