136223245 has 8 divisors (see below), whose sum is σ = 165087000. Its totient is φ = 107899200.

The previous prime is 136223231. The next prime is 136223257. The reversal of 136223245 is 542322631.

It can be written as a sum of positive squares in 4 ways, for example, as 10850436 + 125372809 = 3294^2 + 11197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136223245 - 2⁹ = 136222733 is a prime.

It is a congruent number.

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, 134370 + ... + 135379.

It is an arithmetic number, because the mean of its divisors is an integer number (20635875).

Almost surely, 2^136223245 is an apocalyptic number.

It is an amenable number.

136223245 is a deficient number, since it is larger than the sum of its proper divisors (28863755).

136223245 is a wasteful number, since it uses less digits than its factorization.

136223245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269855.

The product of its digits is 8640, while the sum is 28.

The square root of 136223245 is about 11671.4714153786. The cubic root of 136223245 is about 514.5375494825.

Adding to 136223245 its reverse (542322631), we get a palindrome (678545876).

The spelling of 136223245 in words is "one hundred thirty-six million, two hundred twenty-three thousand, two hundred forty-five".