136542331 has 2 divisors, whose sum is σ = 136542332. Its totient is φ = 136542330.

The previous prime is 136542319. The next prime is 136542337. The reversal of 136542331 is 133245631.

136542331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136542331 - 2⁹ = 136541819 is a prime.

It is a super-2 number, since 2×136542331² = 37287616309827122, 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 136542331.

It is not a weakly prime, because it can be changed into another prime (136542337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68271165 + 68271166.

It is an arithmetic number, because the mean of its divisors is an integer number (68271166).

Almost surely, 2^136542331 is an apocalyptic number.

136542331 is a deficient number, since it is larger than the sum of its proper divisors (1).

136542331 is an equidigital number, since it uses as much as digits as its factorization.

136542331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 136542331 is about 11685.1329046785. The cubic root of 136542331 is about 514.9389829366.

Adding to 136542331 its reverse (133245631), we get a palindrome (269787962).

The spelling of 136542331 in words is "one hundred thirty-six million, five hundred forty-two thousand, three hundred thirty-one".