135085864 has 8 divisors (see below), whose sum is σ = 253286010. Its totient is φ = 67542928.

The previous prime is 135085823. The next prime is 135085883. The reversal of 135085864 is 468580531.

It can be written as a sum of positive squares in only one way, i.e., 134792100 + 293764 = 11610^2 + 542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8442859 + ... + 8442874.

Almost surely, 2^135085864 is an apocalyptic number.

It is an amenable number.

135085864 is a deficient number, since it is larger than the sum of its proper divisors (118200146).

135085864 is a wasteful number, since it uses less digits than its factorization.

135085864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16885739 (or 16885735 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 135085864 is about 11622.6444495218. The cubic root of 135085864 is about 513.1015204899.

The spelling of 135085864 in words is "one hundred thirty-five million, eighty-five thousand, eight hundred sixty-four".