121678337 has 16 divisors (see below), whose sum is σ = 140107200. Its totient is φ = 104509440.

The previous prime is 121678313. The next prime is 121678343. The reversal of 121678337 is 733876121.

It is a cyclic number.

It is not a de Polignac number, because 121678337 - 2⁶ = 121678273 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 121678337.

It is not an unprimeable number, because it can be changed into a prime (121678307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120089 + ... + 121097.

It is an arithmetic number, because the mean of its divisors is an integer number (8756700).

Almost surely, 2^121678337 is an apocalyptic number.

It is an amenable number.

121678337 is a deficient number, since it is larger than the sum of its proper divisors (18428863).

121678337 is a wasteful number, since it uses less digits than its factorization.

121678337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616.

The product of its digits is 42336, while the sum is 38.

The square root of 121678337 is about 11030.7904068566. The cubic root of 121678337 is about 495.5312963581.

The spelling of 121678337 in words is "one hundred twenty-one million, six hundred seventy-eight thousand, three hundred thirty-seven".