121349679 has 32 divisors (see below), whose sum is σ = 187273728. Its totient is φ = 69168000.

The previous prime is 121349671. The next prime is 121349699. The reversal of 121349679 is 976943121.

It is not a de Polignac number, because 121349679 - 2³ = 121349671 is a prime.

It is a super-3 number, since 3×121349679³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121349679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121349671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44989 + ... + 47609.

It is an arithmetic number, because the mean of its divisors is an integer number (5852304).

Almost surely, 2^121349679 is an apocalyptic number.

121349679 is a deficient number, since it is larger than the sum of its proper divisors (65924049).

121349679 is a wasteful number, since it uses less digits than its factorization.

121349679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719.

The product of its digits is 81648, while the sum is 42.

The square root of 121349679 is about 11015.8830331481. The cubic root of 121349679 is about 495.0847441890.

The spelling of 121349679 in words is "one hundred twenty-one million, three hundred forty-nine thousand, six hundred seventy-nine".