121713386 has 4 divisors (see below), whose sum is σ = 182570082. Its totient is φ = 60856692.

The previous prime is 121713367. The next prime is 121713391. The reversal of 121713386 is 683317121.

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

It can be written as a sum of positive squares in only one way, i.e., 121330225 + 383161 = 11015^2 + 619^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30428345 + ... + 30428348.

Almost surely, 2^121713386 is an apocalyptic number.

121713386 is a deficient number, since it is larger than the sum of its proper divisors (60856696).

121713386 is an equidigital number, since it uses as much as digits as its factorization.

121713386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60856695.

The product of its digits is 6048, while the sum is 32.

The square root of 121713386 is about 11032.3789818878. The cubic root of 121713386 is about 495.5788704498.

The spelling of 121713386 in words is "one hundred twenty-one million, seven hundred thirteen thousand, three hundred eighty-six".