135019864 has 16 divisors (see below), whose sum is σ = 289328400. Its totient is φ = 57865632.

The previous prime is 135019837. The next prime is 135019873. The reversal of 135019864 is 468910531.

It is a congruent number.

It is an unprimeable number.

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, 1205479 + ... + 1205590.

It is an arithmetic number, because the mean of its divisors is an integer number (18083025).

Almost surely, 2^135019864 is an apocalyptic number.

135019864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

135019864 is an abundant number, since it is smaller than the sum of its proper divisors (154308536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135019864 is a wasteful number, since it uses less digits than its factorization.

135019864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411082 (or 2411078 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 135019864 is about 11619.8048176379. The cubic root of 135019864 is about 513.0179434818.

The spelling of 135019864 in words is "one hundred thirty-five million, nineteen thousand, eight hundred sixty-four".