136253266 has 16 divisors (see below), whose sum is σ = 216802656. Its totient is φ = 64000576.

The previous prime is 136253251. The next prime is 136253267. The reversal of 136253266 is 662352631.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (136253267) 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 in 7 ways as a sum of consecutive naturals, for example, 16545 + ... + 23371.

It is an arithmetic number, because the mean of its divisors is an integer number (13550166).

Almost surely, 2^136253266 is an apocalyptic number.

136253266 is the 7383-rd centered pentagonal number.

136253266 is a deficient number, since it is larger than the sum of its proper divisors (80549390).

136253266 is a wasteful number, since it uses less digits than its factorization.

136253266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433.

The product of its digits is 38880, while the sum is 34.

The square root of 136253266 is about 11672.7574291596. The cubic root of 136253266 is about 514.5753447872.

The spelling of 136253266 in words is "one hundred thirty-six million, two hundred fifty-three thousand, two hundred sixty-six".