121863066 has 16 divisors (see below), whose sum is σ = 262474464. Its totient is φ = 37496304.

The previous prime is 121863043. The next prime is 121863067. The reversal of 121863066 is 660368121.

It is not an unprimeable number, because it can be changed into a prime (121863067) 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, 781096 + ... + 781251.

It is an arithmetic number, because the mean of its divisors is an integer number (16404654).

Almost surely, 2^121863066 is an apocalyptic number.

121863066 is an abundant number, since it is smaller than the sum of its proper divisors (140611398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121863066 is a wasteful number, since it uses less digits than its factorization.

121863066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562365.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 121863066 is about 11039.1605659126. The cubic root of 121863066 is about 495.7819372913.

The spelling of 121863066 in words is "one hundred twenty-one million, eight hundred sixty-three thousand, sixty-six".