2161970135 has 8 divisors (see below), whose sum is σ = 2793930720. Its totient is φ = 1596531744.

The previous prime is 2161970089. The next prime is 2161970179. The reversal of 2161970135 is 5310791612.

2161970135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2161970135 - 2⁶ = 2161970071 is a prime.

It is a super-2 number, since 2×2161970135² = 9348229729263836450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2161970095 and 2161970104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16630475 + ... + 16630604.

It is an arithmetic number, because the mean of its divisors is an integer number (349241340).

Almost surely, 2^2161970135 is an apocalyptic number.

2161970135 is a deficient number, since it is larger than the sum of its proper divisors (631960585).

2161970135 is a wasteful number, since it uses less digits than its factorization.

2161970135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33261097.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 2161970135 is about 46496.9906015432. The cubic root of 2161970135 is about 1293.0537063677.

The spelling of 2161970135 in words is "two billion, one hundred sixty-one million, nine hundred seventy thousand, one hundred thirty-five".