136491262 has 4 divisors (see below), whose sum is σ = 204736896. Its totient is φ = 68245630.

The previous prime is 136491211. The next prime is 136491263. The reversal of 136491262 is 262194631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136491263) 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, 34122814 + ... + 34122817.

It is an arithmetic number, because the mean of its divisors is an integer number (51184224).

Almost surely, 2^136491262 is an apocalyptic number.

136491262 is a deficient number, since it is larger than the sum of its proper divisors (68245634).

136491262 is an equidigital number, since it uses as much as digits as its factorization.

136491262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68245633.

The product of its digits is 15552, while the sum is 34.

The square root of 136491262 is about 11682.9474876848. The cubic root of 136491262 is about 514.8747764790.

The spelling of 136491262 in words is "one hundred thirty-six million, four hundred ninety-one thousand, two hundred sixty-two".