135391930 has 8 divisors (see below), whose sum is σ = 243705492. Its totient is φ = 54156768.

The previous prime is 135391901. The next prime is 135391939. The reversal of 135391930 is 39193531.

It can be written as a sum of positive squares in 2 ways, for example, as 124835929 + 10556001 = 11173^2 + 3249^2 .

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 (135391939) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6769587 + ... + 6769606.

Almost surely, 2^135391930 is an apocalyptic number.

135391930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135391930 is a deficient number, since it is larger than the sum of its proper divisors (108313562).

135391930 is a wasteful number, since it uses less digits than its factorization.

135391930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13539200.

The product of its (nonzero) digits is 10935, while the sum is 34.

The square root of 135391930 is about 11635.8037969020. The cubic root of 135391930 is about 513.4887420431.

The spelling of 135391930 in words is "one hundred thirty-five million, three hundred ninety-one thousand, nine hundred thirty".