147257219 has 2 divisors, whose sum is σ = 147257220. Its totient is φ = 147257218.

The previous prime is 147257197. The next prime is 147257237. The reversal of 147257219 is 912752741.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147257219 is a prime.

It is a super-2 number, since 2×147257219² = 43369377095227922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147257269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73628609 + 73628610.

It is an arithmetic number, because the mean of its divisors is an integer number (73628610).

Almost surely, 2^147257219 is an apocalyptic number.

147257219 is a deficient number, since it is larger than the sum of its proper divisors (1).

147257219 is an equidigital number, since it uses as much as digits as its factorization.

147257219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 147257219 is about 12134.9585495790. The cubic root of 147257219 is about 528.0708541947.

The spelling of 147257219 in words is "one hundred forty-seven million, two hundred fifty-seven thousand, two hundred nineteen".