147194819 has 2 divisors, whose sum is σ = 147194820. Its totient is φ = 147194818.

The previous prime is 147194813. The next prime is 147194849. The reversal of 147194819 is 918491741.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147194819 - 2²⁴ = 130417603 is a prime.

It is a super-2 number, since 2×147194819² = 43332629480885522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147194819.

It is not a weakly prime, because it can be changed into another prime (147194813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73597409 + 73597410.

It is an arithmetic number, because the mean of its divisors is an integer number (73597410).

Almost surely, 2^147194819 is an apocalyptic number.

147194819 is a deficient number, since it is larger than the sum of its proper divisors (1).

147194819 is an equidigital number, since it uses as much as digits as its factorization.

147194819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 44.

The square root of 147194819 is about 12132.3871929641. The cubic root of 147194819 is about 527.9962539430.

The spelling of 147194819 in words is "one hundred forty-seven million, one hundred ninety-four thousand, eight hundred nineteen".