122944587 has 4 divisors (see below), whose sum is σ = 163926120. Its totient is φ = 81963056.

The previous prime is 122944579. The next prime is 122944603. The reversal of 122944587 is 785449221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785449221 = 3 ⋅261816407.

It is a cyclic number.

It is not a de Polignac number, because 122944587 - 2³ = 122944579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122944387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20490762 + ... + 20490767.

It is an arithmetic number, because the mean of its divisors is an integer number (40981530).

Almost surely, 2^122944587 is an apocalyptic number.

122944587 is a deficient number, since it is larger than the sum of its proper divisors (40981533).

122944587 is an equidigital number, since it uses as much as digits as its factorization.

122944587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40981532.

The product of its digits is 161280, while the sum is 42.

The square root of 122944587 is about 11088.0380140041. The cubic root of 122944587 is about 497.2442893533.

The spelling of 122944587 in words is "one hundred twenty-two million, nine hundred forty-four thousand, five hundred eighty-seven".