135778892 has 12 divisors (see below), whose sum is σ = 237859776. Its totient is φ = 67818960.

The previous prime is 135778889. The next prime is 135778897. The reversal of 135778892 is 298877531.

It is a self number, because there is not a number n which added to its sum of digits gives 135778892.

It is not an unprimeable number, because it can be changed into a prime (135778897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13163 + ... + 21090.

It is an arithmetic number, because the mean of its divisors is an integer number (19821648).

Almost surely, 2^135778892 is an apocalyptic number.

It is an amenable number.

135778892 is a deficient number, since it is larger than the sum of its proper divisors (102080884).

135778892 is a wasteful number, since it uses less digits than its factorization.

135778892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35248 (or 35246 counting only the distinct ones).

The product of its digits is 846720, while the sum is 50.

The square root of 135778892 is about 11652.4200061618. The cubic root of 135778892 is about 513.9774753310.

The spelling of 135778892 in words is "one hundred thirty-five million, seven hundred seventy-eight thousand, eight hundred ninety-two".