121875481 has 16 divisors (see below), whose sum is σ = 157897600. Its totient is φ = 91352448.

The previous prime is 121875473. The next prime is 121875491. The reversal of 121875481 is 184578121.

It is a cyclic number.

It is not a de Polignac number, because 121875481 - 2³ = 121875473 is a prime.

It is a super-2 number, since 2×121875481² = 29707265737962722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121875481.

It is not an unprimeable number, because it can be changed into a prime (121875491) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33516 + ... + 36973.

It is an arithmetic number, because the mean of its divisors is an integer number (9868600).

Almost surely, 2^121875481 is an apocalyptic number.

It is an amenable number.

121875481 is a deficient number, since it is larger than the sum of its proper divisors (36022119).

121875481 is a wasteful number, since it uses less digits than its factorization.

121875481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70528.

The product of its digits is 17920, while the sum is 37.

The square root of 121875481 is about 11039.7228678985. The cubic root of 121875481 is about 495.7987729193.

The spelling of 121875481 in words is "one hundred twenty-one million, eight hundred seventy-five thousand, four hundred eighty-one".