121000147 has 2 divisors, whose sum is σ = 121000148. Its totient is φ = 121000146.

The previous prime is 121000133. The next prime is 121000153. The reversal of 121000147 is 741000121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121000147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121000147.

It is not a weakly prime, because it can be changed into another prime (121000127) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500073 + 60500074.

It is an arithmetic number, because the mean of its divisors is an integer number (60500074).

Almost surely, 2^121000147 is an apocalyptic number.

121000147 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000147 is an equidigital number, since it uses as much as digits as its factorization.

121000147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 121000147 is about 11000.0066818162. The cubic root of 121000147 is about 494.6089446209.

Adding to 121000147 its reverse (741000121), we get a palindrome (862000268).

The spelling of 121000147 in words is "one hundred twenty-one million, one hundred forty-seven", and thus it is an aban number.