136144266 has 16 divisors (see below), whose sum is σ = 272829600. Its totient is φ = 45291248.

The previous prime is 136144247. The next prime is 136144271. The reversal of 136144266 is 662441631.

It is a super-2 number, since 2×136144266² = 37070522329357512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19236 + ... + 25343.

It is an arithmetic number, because the mean of its divisors is an integer number (17051850).

Almost surely, 2^136144266 is an apocalyptic number.

136144266 is an abundant number, since it is smaller than the sum of its proper divisors (136685334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136144266 is a wasteful number, since it uses less digits than its factorization.

136144266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45093.

The product of its digits is 20736, while the sum is 33.

The square root of 136144266 is about 11668.0875039571. The cubic root of 136144266 is about 514.4380913779.

Adding to 136144266 its reverse (662441631), we get a palindrome (798585897).

The spelling of 136144266 in words is "one hundred thirty-six million, one hundred forty-four thousand, two hundred sixty-six".