136306233 has 28 divisors (see below), whose sum is σ = 233569728. Its totient is φ = 77886360.

The previous prime is 136306229. The next prime is 136306249. The reversal of 136306233 is 332603631.

136306233 is a `hidden beast` number, since 1 + 3 + 6 + 30 + 623 + 3 = 666.

It is not a de Polignac number, because 136306233 - 2² = 136306229 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 136306197 and 136306206.

It is not an unprimeable number, because it can be changed into a prime (136306223) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8253 + ... + 18458.

It is an arithmetic number, because the mean of its divisors is an integer number (8341776).

Almost surely, 2^136306233 is an apocalyptic number.

It is an amenable number.

136306233 is a deficient number, since it is larger than the sum of its proper divisors (97263495).

136306233 is an frugal number, since it uses more digits than its factorization.

136306233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26736 (or 26721 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 136306233 is about 11675.0260385149. The cubic root of 136306233 is about 514.6420147029.

Adding to 136306233 its reverse (332603631), we get a palindrome (468909864).

The spelling of 136306233 in words is "one hundred thirty-six million, three hundred six thousand, two hundred thirty-three".