121254685 has 4 divisors (see below), whose sum is σ = 145505628. Its totient is φ = 97003744.

The previous prime is 121254677. The next prime is 121254697. The reversal of 121254685 is 586452121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38862756 + 82391929 = 6234^2 + 9077^2 .

It is a cyclic number.

It is not a de Polignac number, because 121254685 - 2³ = 121254677 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 121254685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12125464 + ... + 12125473.

It is an arithmetic number, because the mean of its divisors is an integer number (36376407).

Almost surely, 2^121254685 is an apocalyptic number.

It is an amenable number.

121254685 is a deficient number, since it is larger than the sum of its proper divisors (24250943).

121254685 is an equidigital number, since it uses as much as digits as its factorization.

121254685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24250942.

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

The square root of 121254685 is about 11011.5705056091. The cubic root of 121254685 is about 494.9555243514.

The spelling of 121254685 in words is "one hundred twenty-one million, two hundred fifty-four thousand, six hundred eighty-five".