121488481 has 4 divisors (see below), whose sum is σ = 121738432. Its totient is φ = 121238532.

The previous prime is 121488463. The next prime is 121488509. The reversal of 121488481 is 184884121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121488481 - 2¹⁵ = 121455713 is a prime.

It is a super-2 number, since 2×121488481² = 29518902031374722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121488481.

It is not an unprimeable number, because it can be changed into a prime (121488431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124245 + ... + 125218.

It is an arithmetic number, because the mean of its divisors is an integer number (30434608).

Almost surely, 2^121488481 is an apocalyptic number.

It is an amenable number.

121488481 is a deficient number, since it is larger than the sum of its proper divisors (249951).

121488481 is an equidigital number, since it uses as much as digits as its factorization.

121488481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249950.

The product of its digits is 16384, while the sum is 37.

The square root of 121488481 is about 11022.1813176884. The cubic root of 121488481 is about 495.2734346173.

The spelling of 121488481 in words is "one hundred twenty-one million, four hundred eighty-eight thousand, four hundred eighty-one".