121026775 has 6 divisors (see below), whose sum is σ = 150073232. Its totient is φ = 96821400.

The previous prime is 121026743. The next prime is 121026779. The reversal of 121026775 is 577620121.

It is not a de Polignac number, because 121026775 - 2⁵ = 121026743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121026779) 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 5 ways as a sum of consecutive naturals, for example, 2420511 + ... + 2420560.

Almost surely, 2^121026775 is an apocalyptic number.

121026775 is a deficient number, since it is larger than the sum of its proper divisors (29046457).

121026775 is an equidigital number, since it uses as much as digits as its factorization.

121026775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841081 (or 4841076 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 121026775 is about 11001.2169781347. The cubic root of 121026775 is about 494.6452241387.

Adding to 121026775 its reverse (577620121), we get a palindrome (698646896).

It can be divided in two parts, 121026 and 775, that added together give a square (121801 = 349²).

The spelling of 121026775 in words is "one hundred twenty-one million, twenty-six thousand, seven hundred seventy-five".