135740649 has 8 divisors (see below), whose sum is σ = 197440992. Its totient is φ = 82267040.

The previous prime is 135740611. The next prime is 135740663. The reversal of 135740649 is 946047531.

135740649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 135740649 - 2¹⁵ = 135707881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135740669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056644 + ... + 2056709.

It is an arithmetic number, because the mean of its divisors is an integer number (24680124).

Almost surely, 2^135740649 is an apocalyptic number.

It is an amenable number.

135740649 is a deficient number, since it is larger than the sum of its proper divisors (61700343).

135740649 is a wasteful number, since it uses less digits than its factorization.

135740649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113367.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 135740649 is about 11650.7789010006. The cubic root of 135740649 is about 513.9292157771.

The spelling of 135740649 in words is "one hundred thirty-five million, seven hundred forty thousand, six hundred forty-nine".