147438665149 has 2 divisors, whose sum is σ = 147438665150. Its totient is φ = 147438665148.

The previous prime is 147438665141. The next prime is 147438665201. The reversal of 147438665149 is 941566834741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79574768100 + 67863897049 = 282090^2 + 260507^2 .

It is a cyclic number.

It is not a de Polignac number, because 147438665149 - 2³ = 147438665141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147438665093 and 147438665102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147438665141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73719332574 + 73719332575.

It is an arithmetic number, because the mean of its divisors is an integer number (73719332575).

Almost surely, 2^147438665149 is an apocalyptic number.

It is an amenable number.

147438665149 is a deficient number, since it is larger than the sum of its proper divisors (1).

147438665149 is an equidigital number, since it uses as much as digits as its factorization.

147438665149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 58.

The spelling of 147438665149 in words is "one hundred forty-seven billion, four hundred thirty-eight million, six hundred sixty-five thousand, one hundred forty-nine".