147139049 has 2 divisors, whose sum is σ = 147139050. Its totient is φ = 147139048.

The previous prime is 147139043. The next prime is 147139061. The reversal of 147139049 is 940931741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104693824 + 42445225 = 10232^2 + 6515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147139049 is a prime.

It is not a weakly prime, because it can be changed into another prime (147139043) 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 as a sum of consecutive naturals, namely, 73569524 + 73569525.

It is an arithmetic number, because the mean of its divisors is an integer number (73569525).

Almost surely, 2^147139049 is an apocalyptic number.

It is an amenable number.

147139049 is a deficient number, since it is larger than the sum of its proper divisors (1).

147139049 is an equidigital number, since it uses as much as digits as its factorization.

147139049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 147139049 is about 12130.0885817046. The cubic root of 147139049 is about 527.9295621238.

The spelling of 147139049 in words is "one hundred forty-seven million, one hundred thirty-nine thousand, forty-nine".