147124121 has 2 divisors, whose sum is σ = 147124122. Its totient is φ = 147124120.

The previous prime is 147124097. The next prime is 147124151. The reversal of 147124121 is 121421741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128504896 + 18619225 = 11336^2 + 4315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147124121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147124151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73562060 + 73562061.

It is an arithmetic number, because the mean of its divisors is an integer number (73562061).

Almost surely, 2^147124121 is an apocalyptic number.

It is an amenable number.

147124121 is a deficient number, since it is larger than the sum of its proper divisors (1).

147124121 is an equidigital number, since it uses as much as digits as its factorization.

147124121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448, while the sum is 23.

The square root of 147124121 is about 12129.4732367074. The cubic root of 147124121 is about 527.9117078127.

Adding to 147124121 its reverse (121421741), we get a palindrome (268545862).

The spelling of 147124121 in words is "one hundred forty-seven million, one hundred twenty-four thousand, one hundred twenty-one".