121853126 has 16 divisors (see below), whose sum is σ = 196881408. Its totient is φ = 56397000.

The previous prime is 121853119. The next prime is 121853153. The reversal of 121853126 is 621358121.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 41300 + ... + 44151.

It is an arithmetic number, because the mean of its divisors is an integer number (12305088).

Almost surely, 2^121853126 is an apocalyptic number.

121853126 is a deficient number, since it is larger than the sum of its proper divisors (75028282).

121853126 is a wasteful number, since it uses less digits than its factorization.

121853126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85507.

The product of its digits is 2880, while the sum is 29.

The square root of 121853126 is about 11038.7103413397. The cubic root of 121853126 is about 495.7684571161.

The spelling of 121853126 in words is "one hundred twenty-one million, eight hundred fifty-three thousand, one hundred twenty-six".