135993671 has 16 divisors (see below), whose sum is σ = 151457280. Its totient is φ = 121072320.

The previous prime is 135993647. The next prime is 135993677. The reversal of 135993671 is 176399531.

It is a cyclic number.

It is not a de Polignac number, because 135993671 - 2¹⁴ = 135977287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135993677) 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, 130370 + ... + 131408.

It is an arithmetic number, because the mean of its divisors is an integer number (9466080).

Almost surely, 2^135993671 is an apocalyptic number.

135993671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135993671 is a deficient number, since it is larger than the sum of its proper divisors (15463609).

135993671 is a wasteful number, since it uses less digits than its factorization.

135993671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286.

The product of its digits is 153090, while the sum is 44.

The square root of 135993671 is about 11661.6324328972. The cubic root of 135993671 is about 514.2483407328.

The spelling of 135993671 in words is "one hundred thirty-five million, nine hundred ninety-three thousand, six hundred seventy-one".