2145238 has 8 divisors (see below), whose sum is σ = 3224232. Its totient is φ = 1070496.

The previous prime is 2145197. The next prime is 2145239. The reversal of 2145238 is 8325412.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145239) 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, 1006 + ... + 2302.

It is an arithmetic number, because the mean of its divisors is an integer number (403029).

2^2145238 is an apocalyptic number.

2145238 is a deficient number, since it is larger than the sum of its proper divisors (1078994).

2145238 is a wasteful number, since it uses less digits than its factorization.

2145238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126.

The product of its digits is 1920, while the sum is 25.

The square root of 2145238 is about 1464.6631011943. The cubic root of 2145238 is about 128.9709286893.

The spelling of 2145238 in words is "two million, one hundred forty-five thousand, two hundred thirty-eight".