135399610 has 8 divisors (see below), whose sum is σ = 243719316. Its totient is φ = 54159840.

The previous prime is 135399581. The next prime is 135399617. The reversal of 135399610 is 16993531.

It can be written as a sum of positive squares in 2 ways, for example, as 127396369 + 8003241 = 11287^2 + 2829^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 135399610.

It is not an unprimeable number, because it can be changed into a prime (135399617) 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, 6769971 + ... + 6769990.

Almost surely, 2^135399610 is an apocalyptic number.

135399610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135399610 is a deficient number, since it is larger than the sum of its proper divisors (108319706).

135399610 is a wasteful number, since it uses less digits than its factorization.

135399610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13539968.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 135399610 is about 11636.1338080997. The cubic root of 135399610 is about 513.4984509402.

The spelling of 135399610 in words is "one hundred thirty-five million, three hundred ninety-nine thousand, six hundred ten".