2051188 has 6 divisors (see below), whose sum is σ = 3589586. Its totient is φ = 1025592.

The previous prime is 2051173. The next prime is 2051191. The reversal of 2051188 is 8811502.

It can be written as a sum of positive squares in only one way, i.e., 1669264 + 381924 = 1292^2 + 618^2 .

It is a super-2 number, since 2×2051188² = 8414744422688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256395 + ... + 256402.

2^2051188 is an apocalyptic number.

It is an amenable number.

2051188 is a deficient number, since it is larger than the sum of its proper divisors (1538398).

2051188 is a wasteful number, since it uses less digits than its factorization.

2051188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512801 (or 512799 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 2051188 is about 1432.1969138355. The cubic root of 2051188 is about 127.0579436752.

The spelling of 2051188 in words is "two million, fifty-one thousand, one hundred eighty-eight".