2691148 has 6 divisors (see below), whose sum is σ = 4709516. Its totient is φ = 1345572.

The previous prime is 2691131. The next prime is 2691149. The reversal of 2691148 is 8411962.

It is a happy number.

It is an Ulam number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2691149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336390 + ... + 336397.

2^2691148 is an apocalyptic number.

It is an amenable number.

2691148 is a deficient number, since it is larger than the sum of its proper divisors (2018368).

2691148 is a wasteful number, since it uses less digits than its factorization.

2691148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672791 (or 672789 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 2691148 is about 1640.4718833311. The cubic root of 2691148 is about 139.0953230521.

The spelling of 2691148 in words is "two million, six hundred ninety-one thousand, one hundred forty-eight".