135470643 has 48 divisors (see below), whose sum is σ = 230918400. Its totient is φ = 69854400.

The previous prime is 135470641. The next prime is 135470663. The reversal of 135470643 is 346074531.

It is not a de Polignac number, because 135470643 - 2¹ = 135470641 is a prime.

It is a super-2 number, since 2×135470643² = 36704590229666898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (135470641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 321573 + ... + 321993.

It is an arithmetic number, because the mean of its divisors is an integer number (4810800).

Almost surely, 2^135470643 is an apocalyptic number.

135470643 is a deficient number, since it is larger than the sum of its proper divisors (95447757).

135470643 is a wasteful number, since it uses less digits than its factorization.

135470643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 135470643 is about 11639.1856673910. The cubic root of 135470643 is about 513.5882319935.

The spelling of 135470643 in words is "one hundred thirty-five million, four hundred seventy thousand, six hundred forty-three".