2145634 has 8 divisors (see below), whose sum is σ = 3322368. Its totient is φ = 1038180.

The previous prime is 2145631. The next prime is 2145641. The reversal of 2145634 is 4365412.

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

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2145599 and 2145608.

It is not an unprimeable number, because it can be changed into a prime (2145631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17242 + ... + 17365.

It is an arithmetic number, because the mean of its divisors is an integer number (415296).

2^2145634 is an apocalyptic number.

2145634 is a deficient number, since it is larger than the sum of its proper divisors (1176734).

2145634 is a wasteful number, since it uses less digits than its factorization.

2145634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34640.

The product of its digits is 2880, while the sum is 25.

The square root of 2145634 is about 1464.7982796276. The cubic root of 2145634 is about 128.9788639930.

The spelling of 2145634 in words is "two million, one hundred forty-five thousand, six hundred thirty-four".