122387945 has 8 divisors (see below), whose sum is σ = 153251136. Its totient is φ = 93653296.

The previous prime is 122387921. The next prime is 122387957. The reversal of 122387945 is 549783221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122387945 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532007 + ... + 532236.

It is an arithmetic number, because the mean of its divisors is an integer number (19156392).

Almost surely, 2^122387945 is an apocalyptic number.

It is an amenable number.

122387945 is a deficient number, since it is larger than the sum of its proper divisors (30863191).

122387945 is a wasteful number, since it uses less digits than its factorization.

122387945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064271.

The product of its digits is 120960, while the sum is 41.

The square root of 122387945 is about 11062.9085235303. The cubic root of 122387945 is about 496.4927154343.

The spelling of 122387945 in words is "one hundred twenty-two million, three hundred eighty-seven thousand, nine hundred forty-five".