121256485 has 8 divisors (see below), whose sum is σ = 166294656. Its totient is φ = 83147280.

The previous prime is 121256479. The next prime is 121256489. The reversal of 121256485 is 584652121.

It is a happy number.

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

It is not a de Polignac number, because 121256485 - 2³ = 121256477 is a prime.

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 121256485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121256489) 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, 1732201 + ... + 1732270.

It is an arithmetic number, because the mean of its divisors is an integer number (20786832).

Almost surely, 2^121256485 is an apocalyptic number.

It is an amenable number.

121256485 is a deficient number, since it is larger than the sum of its proper divisors (45038171).

121256485 is an equidigital number, since it uses as much as digits as its factorization.

121256485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464483.

The product of its digits is 19200, while the sum is 34.

The square root of 121256485 is about 11011.6522375164. The cubic root of 121256485 is about 494.9579735091.

The spelling of 121256485 in words is "one hundred twenty-one million, two hundred fifty-six thousand, four hundred eighty-five".