136919042 has 16 divisors (see below), whose sum is σ = 223210680. Its totient is φ = 62612352.

The previous prime is 136919011. The next prime is 136919047. The reversal of 136919042 is 240919631.

It can be written as a sum of positive squares in 4 ways, for example, as 92948881 + 43970161 = 9641^2 + 6631^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 136918993 and 136919011.

It is not an unprimeable number, because it can be changed into a prime (136919047) 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, 21323 + ... + 26990.

Almost surely, 2^136919042 is an apocalyptic number.

136919042 is a deficient number, since it is larger than the sum of its proper divisors (86291638).

136919042 is a wasteful number, since it uses less digits than its factorization.

136919042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48437.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 136919042 is about 11701.2410452909. The cubic root of 136919042 is about 515.4121086338.

The spelling of 136919042 in words is "one hundred thirty-six million, nine hundred nineteen thousand, forty-two".