121813082 has 4 divisors (see below), whose sum is σ = 182719626. Its totient is φ = 60906540.

The previous prime is 121813057. The next prime is 121813093. The reversal of 121813082 is 280318121.

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., 120538441 + 1274641 = 10979^2 + 1129^2 .

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, 30453269 + ... + 30453272.

Almost surely, 2^121813082 is an apocalyptic number.

121813082 is a deficient number, since it is larger than the sum of its proper divisors (60906544).

121813082 is an equidigital number, since it uses as much as digits as its factorization.

121813082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60906543.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 121813082 is about 11036.8963934613. The cubic root of 121813082 is about 495.7141438407.

The spelling of 121813082 in words is "one hundred twenty-one million, eight hundred thirteen thousand, eighty-two".