135891315 has 48 divisors (see below), whose sum is σ = 270129600. Its totient is φ = 61906176.

The previous prime is 135891289. The next prime is 135891323. The reversal of 135891315 is 513198531.

It is not a de Polignac number, because 135891315 - 2⁹ = 135890803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135891315.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121981 + ... + 123089.

It is an arithmetic number, because the mean of its divisors is an integer number (5627700).

Almost surely, 2^135891315 is an apocalyptic number.

135891315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135891315 is a deficient number, since it is larger than the sum of its proper divisors (134238285).

135891315 is a wasteful number, since it uses less digits than its factorization.

135891315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1513 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 135891315 is about 11657.2430274058. The cubic root of 135891315 is about 514.1192915549.

The spelling of 135891315 in words is "one hundred thirty-five million, eight hundred ninety-one thousand, three hundred fifteen".