121603679 has 2 divisors, whose sum is σ = 121603680. Its totient is φ = 121603678.

The previous prime is 121603609. The next prime is 121603687. The reversal of 121603679 is 976306121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121603679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121603609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60801839 + 60801840.

It is an arithmetic number, because the mean of its divisors is an integer number (60801840).

Almost surely, 2^121603679 is an apocalyptic number.

121603679 is a deficient number, since it is larger than the sum of its proper divisors (1).

121603679 is an equidigital number, since it uses as much as digits as its factorization.

121603679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 121603679 is about 11027.4058146057. The cubic root of 121603679 is about 495.4299281513.

The spelling of 121603679 in words is "one hundred twenty-one million, six hundred three thousand, six hundred seventy-nine".