135899674 has 8 divisors (see below), whose sum is σ = 205720020. Its totient is φ = 67326336.

The previous prime is 135899653. The next prime is 135899677. The reversal of 135899674 is 476998531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 134722449 + 1177225 = 11607^2 + 1085^2 .

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

It is not an unprimeable number, because it can be changed into a prime (135899677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311479 + ... + 311914.

Almost surely, 2^135899674 is an apocalyptic number.

135899674 is a deficient number, since it is larger than the sum of its proper divisors (69820346).

135899674 is a wasteful number, since it uses less digits than its factorization.

135899674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623504.

The product of its digits is 1632960, while the sum is 52.

The square root of 135899674 is about 11657.6015543507. The cubic root of 135899674 is about 514.1298329081.

The spelling of 135899674 in words is "one hundred thirty-five million, eight hundred ninety-nine thousand, six hundred seventy-four".