121685254 has 8 divisors (see below), whose sum is σ = 182646288. Its totient is φ = 60803160.

The previous prime is 121685243. The next prime is 121685279. The reversal of 121685254 is 452586121.

It is a happy number.

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

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, 15717 + ... + 22144.

It is an arithmetic number, because the mean of its divisors is an integer number (22830786).

Almost surely, 2^121685254 is an apocalyptic number.

121685254 is a deficient number, since it is larger than the sum of its proper divisors (60961034).

121685254 is a wasteful number, since it uses less digits than its factorization.

121685254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39470.

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

The square root of 121685254 is about 11031.1039338772. The cubic root of 121685254 is about 495.5406859370.

The spelling of 121685254 in words is "one hundred twenty-one million, six hundred eighty-five thousand, two hundred fifty-four".