121386673 has 4 divisors (see below), whose sum is σ = 122638180. Its totient is φ = 120135168.

The previous prime is 121386667. The next prime is 121386679. The reversal of 121386673 is 376683121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (121386667) and next prime (121386679).

It can be written as a sum of positive squares in 2 ways, for example, as 64112049 + 57274624 = 8007^2 + 7568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121386673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121386679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625608 + ... + 625801.

It is an arithmetic number, because the mean of its divisors is an integer number (30659545).

Almost surely, 2^121386673 is an apocalyptic number.

It is an amenable number.

121386673 is a deficient number, since it is larger than the sum of its proper divisors (1251507).

121386673 is an equidigital number, since it uses as much as digits as its factorization.

121386673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251506.

The product of its digits is 36288, while the sum is 37.

The square root of 121386673 is about 11017.5620261472. The cubic root of 121386673 is about 495.1350486874.

The spelling of 121386673 in words is "one hundred twenty-one million, three hundred eighty-six thousand, six hundred seventy-three".