121481 has 8 divisors (see below), whose sum is σ = 129600. Its totient is φ = 113680.

The previous prime is 121469. The next prime is 121487. The reversal of 121481 is 184121.

121481 = T₃ + T₄ + ... + T₈₉.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121481 - 2¹⁴ = 105097 is a prime.

It is a super-2 number, since 2×121481² = 29515266722, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121481.

It is not an unprimeable number, because it can be changed into a prime (121487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676 + ... + 1746.

It is an arithmetic number, because the mean of its divisors is an integer number (16200).

2¹²¹⁴⁸¹ is an apocalyptic number.

It is an amenable number.

121481 is a deficient number, since it is larger than the sum of its proper divisors (8119).

121481 is an equidigital number, since it uses as much as digits as its factorization.

121481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159.

The product of its digits is 64, while the sum is 17.

The square root of 121481 is about 348.5412457658. The cubic root of 121481 is about 49.5263268450.

The spelling of 121481 in words is "one hundred twenty-one thousand, four hundred eighty-one".