136243037 has 4 divisors (see below), whose sum is σ = 155706336. Its totient is φ = 116779740.

The previous prime is 136243021. The next prime is 136243043. The reversal of 136243037 is 730342631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 136243037 - 2⁴ = 136243021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136243057) 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, 9731639 + ... + 9731652.

It is an arithmetic number, because the mean of its divisors is an integer number (38926584).

Almost surely, 2^136243037 is an apocalyptic number.

It is an amenable number.

136243037 is a deficient number, since it is larger than the sum of its proper divisors (19463299).

136243037 is an equidigital number, since it uses as much as digits as its factorization.

136243037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19463298.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 136243037 is about 11672.3192639681. The cubic root of 136243037 is about 514.5624674863.

Adding to 136243037 its reverse (730342631), we get a palindrome (866585668).

It can be divided in two parts, 13624 and 3037, that added together give a palindrome (16661).

The spelling of 136243037 in words is "one hundred thirty-six million, two hundred forty-three thousand, thirty-seven".