136318949903 has 16 divisors (see below), whose sum is σ = 145902415680. Its totient is φ = 126910734336.

The previous prime is 136318949867. The next prime is 136318949939. The reversal of 136318949903 is 309949813631.

It is an interprime number because it is at equal distance from previous prime (136318949867) and next prime (136318949939).

It is a cyclic number.

It is not a de Polignac number, because 136318949903 - 2⁸ = 136318949647 is a prime.

It is a super-2 number, since 2×136318949903² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136318940903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3265718 + ... + 3307196.

It is an arithmetic number, because the mean of its divisors is an integer number (9118900980).

Almost surely, 2^136318949903 is an apocalyptic number.

136318949903 is a deficient number, since it is larger than the sum of its proper divisors (9583465777).

136318949903 is a wasteful number, since it uses less digits than its factorization.

136318949903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43586.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The spelling of 136318949903 in words is "one hundred thirty-six billion, three hundred eighteen million, nine hundred forty-nine thousand, nine hundred three".