121863027 has 24 divisors (see below), whose sum is σ = 191947968. Its totient is φ = 68172000.

The previous prime is 121863019. The next prime is 121863031. The reversal of 121863027 is 720368121.

It is not a de Polignac number, because 121863027 - 2³ = 121863019 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 121862985 and 121863003.

It is not an unprimeable number, because it can be changed into a prime (121863067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5349 + ... + 16502.

It is an arithmetic number, because the mean of its divisors is an integer number (7997832).

Almost surely, 2^121863027 is an apocalyptic number.

121863027 is a deficient number, since it is larger than the sum of its proper divisors (70084941).

121863027 is a wasteful number, since it uses less digits than its factorization.

121863027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21891 (or 21878 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 121863027 is about 11039.1587994738. The cubic root of 121863027 is about 495.7818844027.

The spelling of 121863027 in words is "one hundred twenty-one million, eight hundred sixty-three thousand, twenty-seven".