147859819 has 2 divisors, whose sum is σ = 147859820. Its totient is φ = 147859818.

The previous prime is 147859799. The next prime is 147859837. The reversal of 147859819 is 918958741.

It is a strong prime.

It is an emirp because it is prime and its reverse (918958741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147859819 - 2⁵ = 147859787 is a prime.

It is a super-2 number, since 2×147859819² = 43725052149425522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147859849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73929909 + 73929910.

It is an arithmetic number, because the mean of its divisors is an integer number (73929910).

Almost surely, 2^147859819 is an apocalyptic number.

147859819 is a deficient number, since it is larger than the sum of its proper divisors (1).

147859819 is an equidigital number, since it uses as much as digits as its factorization.

147859819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 52.

The square root of 147859819 is about 12159.7622920845. The cubic root of 147859819 is about 528.7901905600.

The spelling of 147859819 in words is "one hundred forty-seven million, eight hundred fifty-nine thousand, eight hundred nineteen".