135340249 has 16 divisors (see below), whose sum is σ = 156948480. Its totient is φ = 115410960.

The previous prime is 135340241. The next prime is 135340259. The reversal of 135340249 is 942043531.

It is a cyclic number.

It is not a de Polignac number, because 135340249 - 2³ = 135340241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135340249.

It is not an unprimeable number, because it can be changed into a prime (135340241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18384 + ... + 24670.

It is an arithmetic number, because the mean of its divisors is an integer number (9809280).

Almost surely, 2^135340249 is an apocalyptic number.

135340249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

135340249 is a deficient number, since it is larger than the sum of its proper divisors (21608231).

135340249 is a wasteful number, since it uses less digits than its factorization.

135340249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6420.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 135340249 is about 11633.5828101235. The cubic root of 135340249 is about 513.4233984415.

The spelling of 135340249 in words is "one hundred thirty-five million, three hundred forty thousand, two hundred forty-nine".