135922819 has 2 divisors, whose sum is σ = 135922820. Its totient is φ = 135922818.

The previous prime is 135922811. The next prime is 135922873. The reversal of 135922819 is 918229531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135922819 - 2³ = 135922811 is a prime.

It is a super-2 number, since 2×135922819² = 36950025449813522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135922811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67961409 + 67961410.

It is an arithmetic number, because the mean of its divisors is an integer number (67961410).

Almost surely, 2^135922819 is an apocalyptic number.

135922819 is a deficient number, since it is larger than the sum of its proper divisors (1).

135922819 is an equidigital number, since it uses as much as digits as its factorization.

135922819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 40.

The square root of 135922819 is about 11658.5942119966. The cubic root of 135922819 is about 514.1590183093.

The spelling of 135922819 in words is "one hundred thirty-five million, nine hundred twenty-two thousand, eight hundred nineteen".