135371619 has 6 divisors (see below), whose sum is σ = 195536796. Its totient is φ = 90247740.

The previous prime is 135371603. The next prime is 135371633. The reversal of 135371619 is 916173531.

135371619 is a `hidden beast` number, since 1 + 3 + 5 + 37 + 1 + 619 = 666.

It is not a de Polignac number, because 135371619 - 2⁴ = 135371603 is a prime.

It is a super-2 number, since 2×135371619² = 36650950461362322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135371659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7520637 + ... + 7520654.

It is an arithmetic number, because the mean of its divisors is an integer number (32589466).

Almost surely, 2^135371619 is an apocalyptic number.

135371619 is a deficient number, since it is larger than the sum of its proper divisors (60165177).

135371619 is a wasteful number, since it uses less digits than its factorization.

135371619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15041297 (or 15041294 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 135371619 is about 11634.9309838950. The cubic root of 135371619 is about 513.4630635273.

The spelling of 135371619 in words is "one hundred thirty-five million, three hundred seventy-one thousand, six hundred nineteen".