2151748 has 12 divisors (see below), whose sum is σ = 3817660. Its totient is φ = 1060992.

The previous prime is 2151703. The next prime is 2151767. The reversal of 2151748 is 8471512.

It can be written as a sum of positive squares in 2 ways, for example, as 1658944 + 492804 = 1288^2 + 702^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3393 + ... + 3976.

2^2151748 is an apocalyptic number.

It is an amenable number.

2151748 is a deficient number, since it is larger than the sum of its proper divisors (1665912).

2151748 is a wasteful number, since it uses less digits than its factorization.

2151748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446 (or 7444 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 2151748 is about 1466.8837718102. The cubic root of 2151748 is about 129.1012565570.

The spelling of 2151748 in words is "two million, one hundred fifty-one thousand, seven hundred forty-eight".