147207139 has 2 divisors, whose sum is σ = 147207140. Its totient is φ = 147207138.

The previous prime is 147207133. The next prime is 147207143. The reversal of 147207139 is 931702741.

147207139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147207139 is a prime.

It is not a weakly prime, because it can be changed into another prime (147207133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73603569 + 73603570.

It is an arithmetic number, because the mean of its divisors is an integer number (73603570).

Almost surely, 2^147207139 is an apocalyptic number.

147207139 is a deficient number, since it is larger than the sum of its proper divisors (1).

147207139 is an equidigital number, since it uses as much as digits as its factorization.

147207139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 147207139 is about 12132.8949142404. The cubic root of 147207139 is about 528.0109843808.

The spelling of 147207139 in words is "one hundred forty-seven million, two hundred seven thousand, one hundred thirty-nine".