2851538 has 4 divisors (see below), whose sum is σ = 4277310. Its totient is φ = 1425768.

The previous prime is 2851523. The next prime is 2851543. The reversal of 2851538 is 8351582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2393209 + 458329 = 1547^2 + 677^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712883 + ... + 712886.

2^2851538 is an apocalyptic number.

2851538 is a deficient number, since it is larger than the sum of its proper divisors (1425772).

2851538 is a wasteful number, since it uses less digits than its factorization.

2851538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425771.

The product of its digits is 9600, while the sum is 32.

The square root of 2851538 is about 1688.6497564622. The cubic root of 2851538 is about 141.8054931319.

The spelling of 2851538 in words is "two million, eight hundred fifty-one thousand, five hundred thirty-eight".