134944819 has 2 divisors, whose sum is σ = 134944820. Its totient is φ = 134944818.

The previous prime is 134944813. The next prime is 134944847. The reversal of 134944819 is 918449431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134944819 - 2³ = 134944811 is a prime.

It is a super-2 number, since 2×134944819² = 36420208349885522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134944811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67472409 + 67472410.

It is an arithmetic number, because the mean of its divisors is an integer number (67472410).

Almost surely, 2^134944819 is an apocalyptic number.

134944819 is a deficient number, since it is larger than the sum of its proper divisors (1).

134944819 is an equidigital number, since it uses as much as digits as its factorization.

134944819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 134944819 is about 11616.5751837622. The cubic root of 134944819 is about 512.9228795275.

The spelling of 134944819 in words is "one hundred thirty-four million, nine hundred forty-four thousand, eight hundred nineteen".