121772834 has 4 divisors (see below), whose sum is σ = 182659254. Its totient is φ = 60886416.

The previous prime is 121772831. The next prime is 121772837. The reversal of 121772834 is 438277121.

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 (121772831) and next prime (121772837).

It can be written as a sum of positive squares in only one way, i.e., 108472225 + 13300609 = 10415^2 + 3647^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121772794 and 121772803.

It is not an unprimeable number, because it can be changed into a prime (121772831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30443207 + ... + 30443210.

Almost surely, 2^121772834 is an apocalyptic number.

121772834 is a deficient number, since it is larger than the sum of its proper divisors (60886420).

121772834 is an equidigital number, since it uses as much as digits as its factorization.

121772834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60886419.

The product of its digits is 18816, while the sum is 35.

The square root of 121772834 is about 11035.0729041543. The cubic root of 121772834 is about 495.6595418764.

The spelling of 121772834 in words is "one hundred twenty-one million, seven hundred seventy-two thousand, eight hundred thirty-four".