122687137 has 8 divisors (see below), whose sum is σ = 125474400. Its totient is φ = 119923584.

The previous prime is 122687093. The next prime is 122687143. The reversal of 122687137 is 731786221.

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-122687137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122687096 and 122687105.

It is not an unprimeable number, because it can be changed into a prime (122687837) 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, 4753 + ... + 16369.

It is an arithmetic number, because the mean of its divisors is an integer number (15684300).

Almost surely, 2^122687137 is an apocalyptic number.

It is an amenable number.

122687137 is a deficient number, since it is larger than the sum of its proper divisors (2787263).

122687137 is a wasteful number, since it uses less digits than its factorization.

122687137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11855.

The product of its digits is 28224, while the sum is 37.

The square root of 122687137 is about 11076.4225722929. The cubic root of 122687137 is about 496.8969648505.

The spelling of 122687137 in words is "one hundred twenty-two million, six hundred eighty-seven thousand, one hundred thirty-seven".