135937849 has 4 divisors (see below), whose sum is σ = 136235764. Its totient is φ = 135639936.

The previous prime is 135937847. The next prime is 135937853. The reversal of 135937849 is 948739531.

135937849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 948739531 = 31 ⋅30604501.

It can be written as a sum of positive squares in 2 ways, for example, as 126967824 + 8970025 = 11268^2 + 2995^2 .

It is a cyclic number.

It is not a de Polignac number, because 135937849 - 2¹ = 135937847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135937847) 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, 148272 + ... + 149185.

It is an arithmetic number, because the mean of its divisors is an integer number (34058941).

Almost surely, 2^135937849 is an apocalyptic number.

It is an amenable number.

135937849 is a deficient number, since it is larger than the sum of its proper divisors (297915).

135937849 is an equidigital number, since it uses as much as digits as its factorization.

135937849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297914.

The product of its digits is 816480, while the sum is 49.

The square root of 135937849 is about 11659.2387830424. The cubic root of 135937849 is about 514.1779690768.

The spelling of 135937849 in words is "one hundred thirty-five million, nine hundred thirty-seven thousand, eight hundred forty-nine".