2191048 has 8 divisors (see below), whose sum is σ = 4108230. Its totient is φ = 1095520.

The previous prime is 2191031. The next prime is 2191051. The reversal of 2191048 is 8401912.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1340964 + 850084 = 1158^2 + 922^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136933 + ... + 136948.

2^2191048 is an apocalyptic number.

It is an amenable number.

2191048 is a deficient number, since it is larger than the sum of its proper divisors (1917182).

2191048 is a wasteful number, since it uses less digits than its factorization.

2191048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273887 (or 273883 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2191048 is about 1480.2189027303. The cubic root of 2191048 is about 129.8824973756.

The spelling of 2191048 in words is "two million, one hundred ninety-one thousand, forty-eight".