135992442 has 16 divisors (see below), whose sum is σ = 273615552. Its totient is φ = 45059040.

The previous prime is 135992419. The next prime is 135992447. The reversal of 135992442 is 244299531.

It is a super-2 number, since 2×135992442² = 36987888562246728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135992442.

It is not an unprimeable number, because it can be changed into a prime (135992447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66859 + ... + 68862.

It is an arithmetic number, because the mean of its divisors is an integer number (17100972).

Almost surely, 2^135992442 is an apocalyptic number.

135992442 is an abundant number, since it is smaller than the sum of its proper divisors (137623110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135992442 is a wasteful number, since it uses less digits than its factorization.

135992442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135893.

The product of its digits is 77760, while the sum is 39.

The square root of 135992442 is about 11661.5797386117. The cubic root of 135992442 is about 514.2467916090.

The spelling of 135992442 in words is "one hundred thirty-five million, nine hundred ninety-two thousand, four hundred forty-two".