2135847 has 32 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 1123200.

The previous prime is 2135831. The next prime is 2135851. The reversal of 2135847 is 7485312.

It is not a de Polignac number, because 2135847 - 2⁴ = 2135831 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2135847 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21097 + ... + 21197.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^2135847 is an apocalyptic number.

2135847 is a deficient number, since it is larger than the sum of its proper divisors (1389273).

2135847 is a wasteful number, since it uses less digits than its factorization.

2135847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183.

The product of its digits is 6720, while the sum is 30.

The square root of 2135847 is about 1461.4537283130. The cubic root of 2135847 is about 128.7824589039.

The spelling of 2135847 in words is "two million, one hundred thirty-five thousand, eight hundred forty-seven".