136831903 has 8 divisors (see below), whose sum is σ = 147666848. Its totient is φ = 126041184.

The previous prime is 136831873. The next prime is 136831907. The reversal of 136831903 is 309138631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136831903 - 2¹⁷ = 136700831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136831907) 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, 4476 + ... + 17137.

It is an arithmetic number, because the mean of its divisors is an integer number (18458356).

Almost surely, 2^136831903 is an apocalyptic number.

136831903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136831903 is a deficient number, since it is larger than the sum of its proper divisors (10834945).

136831903 is a wasteful number, since it uses less digits than its factorization.

136831903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22113.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 136831903 is about 11697.5169587396. The cubic root of 136831903 is about 515.3027446713.

The spelling of 136831903 in words is "one hundred thirty-six million, eight hundred thirty-one thousand, nine hundred three".