121426105 has 16 divisors (see below), whose sum is σ = 147433680. Its totient is φ = 96000768.

The previous prime is 121426073. The next prime is 121426141. The reversal of 121426105 is 501624121.

It can be written as a sum of positive squares in 8 ways, for example, as 514089 + 120912016 = 717^2 + 10996^2 .

It is a cyclic number.

It is not a de Polignac number, because 121426105 - 2⁵ = 121426073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197779 + ... + 198391.

It is an arithmetic number, because the mean of its divisors is an integer number (9214605).

Almost surely, 2^121426105 is an apocalyptic number.

It is an amenable number.

121426105 is a deficient number, since it is larger than the sum of its proper divisors (26007575).

121426105 is a wasteful number, since it uses less digits than its factorization.

121426105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 121426105 is about 11019.3513874456. The cubic root of 121426105 is about 495.1886571301.

The spelling of 121426105 in words is "one hundred twenty-one million, four hundred twenty-six thousand, one hundred five".