136103381 has 2 divisors, whose sum is σ = 136103382. Its totient is φ = 136103380.

The previous prime is 136103329. The next prime is 136103437. The reversal of 136103381 is 183301631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117527281 + 18576100 = 10841^2 + 4310^2 .

It is a cyclic number.

It is not a de Polignac number, because 136103381 - 2¹⁴ = 136086997 is a prime.

It is a super-2 number, since 2×136103381² = 37048260639262322, 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 136103381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136103081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68051690 + 68051691.

It is an arithmetic number, because the mean of its divisors is an integer number (68051691).

Almost surely, 2^136103381 is an apocalyptic number.

It is an amenable number.

136103381 is a deficient number, since it is larger than the sum of its proper divisors (1).

136103381 is an equidigital number, since it uses as much as digits as its factorization.

136103381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 136103381 is about 11666.3353714866. The cubic root of 136103381 is about 514.3865898647.

The spelling of 136103381 in words is "one hundred thirty-six million, one hundred three thousand, three hundred eighty-one".