122245139 has 8 divisors (see below), whose sum is σ = 124673472. Its totient is φ = 119839720.

The previous prime is 122245133. The next prime is 122245163. The reversal of 122245139 is 931542221.

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 122245139 - 2¹² = 122241043 is a prime.

It is a super-3 number, since 3×122245139³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122245133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5252 + ... + 16494.

It is an arithmetic number, because the mean of its divisors is an integer number (15584184).

Almost surely, 2^122245139 is an apocalyptic number.

122245139 is a deficient number, since it is larger than the sum of its proper divisors (2428333).

122245139 is a wasteful number, since it uses less digits than its factorization.

122245139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11457.

The product of its digits is 4320, while the sum is 29.

The square root of 122245139 is about 11056.4523695442. The cubic root of 122245139 is about 496.2995326456.

The spelling of 122245139 in words is "one hundred twenty-two million, two hundred forty-five thousand, one hundred thirty-nine".