121254986 has 16 divisors (see below), whose sum is σ = 183284640. Its totient is φ = 60162480.

The previous prime is 121254983. The next prime is 121254997. The reversal of 121254986 is 689452121.

It is not an unprimeable number, because it can be changed into a prime (121254983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262796 + ... + 263256.

It is an arithmetic number, because the mean of its divisors is an integer number (11455290).

Almost surely, 2^121254986 is an apocalyptic number.

121254986 is a deficient number, since it is larger than the sum of its proper divisors (62029654).

121254986 is a wasteful number, since it uses less digits than its factorization.

121254986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its digits is 34560, while the sum is 38.

The square root of 121254986 is about 11011.5841730425. The cubic root of 121254986 is about 494.9559339067.

The spelling of 121254986 in words is "one hundred twenty-one million, two hundred fifty-four thousand, nine hundred eighty-six".