135749385 has 16 divisors (see below), whose sum is σ = 241332480. Its totient is φ = 72399600.

The previous prime is 135749359. The next prime is 135749399. The reversal of 135749385 is 583947531.

It is not a de Polignac number, because 135749385 - 2⁶ = 135749321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 135749385.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502641 + ... + 502910.

It is an arithmetic number, because the mean of its divisors is an integer number (15083280).

Almost surely, 2^135749385 is an apocalyptic number.

135749385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135749385 is a deficient number, since it is larger than the sum of its proper divisors (105583095).

135749385 is a wasteful number, since it uses less digits than its factorization.

135749385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005565 (or 1005559 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 135749385 is about 11651.1538055250. The cubic root of 135749385 is about 513.9402406969.

The spelling of 135749385 in words is "one hundred thirty-five million, seven hundred forty-nine thousand, three hundred eighty-five".