136444201 has 4 divisors (see below), whose sum is σ = 136476612. Its totient is φ = 136411792.

The previous prime is 136444199. The next prime is 136444213. The reversal of 136444201 is 102444631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 80568576 + 55875625 = 8976^2 + 7475^2 .

It is a cyclic number.

It is not a de Polignac number, because 136444201 - 2¹ = 136444199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136444241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8746 + ... + 18691.

It is an arithmetic number, because the mean of its divisors is an integer number (34119153).

Almost surely, 2^136444201 is an apocalyptic number.

It is an amenable number.

136444201 is a deficient number, since it is larger than the sum of its proper divisors (32411).

136444201 is an equidigital number, since it uses as much as digits as its factorization.

136444201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32410.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 136444201 is about 11680.9332247043. The cubic root of 136444201 is about 514.8155948951.

Adding to 136444201 its reverse (102444631), we get a palindrome (238888832).

The spelling of 136444201 in words is "one hundred thirty-six million, four hundred forty-four thousand, two hundred one".