122987768 has 16 divisors (see below), whose sum is σ = 232842480. Its totient is φ = 60896448.

The previous prime is 122987743. The next prime is 122987797. The reversal of 122987768 is 867789221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73805 + ... + 75452.

It is an arithmetic number, because the mean of its divisors is an integer number (14552655).

Almost surely, 2^122987768 is an apocalyptic number.

It is an amenable number.

122987768 is a deficient number, since it is larger than the sum of its proper divisors (109854712).

122987768 is a wasteful number, since it uses less digits than its factorization.

122987768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149366 (or 149362 counting only the distinct ones).

The product of its digits is 677376, while the sum is 50.

The square root of 122987768 is about 11089.9850315499. The cubic root of 122987768 is about 497.3024971278.

The spelling of 122987768 in words is "one hundred twenty-two million, nine hundred eighty-seven thousand, seven hundred sixty-eight".