136038789 has 12 divisors (see below), whose sum is σ = 196815372. Its totient is φ = 90547200.

The previous prime is 136038781. The next prime is 136038817. The reversal of 136038789 is 987830631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83722500 + 52316289 = 9150^2 + 7233^2 .

It is not a de Polignac number, because 136038789 - 2³ = 136038781 is a prime.

It is a super-2 number, since 2×136038789² = 37013104225173042, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136038781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6022 + ... + 17559.

It is an arithmetic number, because the mean of its divisors is an integer number (16401281).

Almost surely, 2^136038789 is an apocalyptic number.

It is an amenable number.

136038789 is a deficient number, since it is larger than the sum of its proper divisors (60776583).

136038789 is a wasteful number, since it uses less digits than its factorization.

136038789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24228 (or 24225 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 136038789 is about 11663.5667357803. The cubic root of 136038789 is about 514.3052043870.

The spelling of 136038789 in words is "one hundred thirty-six million, thirty-eight thousand, seven hundred eighty-nine".