21151096 has 16 divisors (see below), whose sum is σ = 40251240. Its totient is φ = 10417440.

The previous prime is 21151069. The next prime is 21151147. The reversal of 21151096 is 69015112.

It is a self number, because there is not a number n which added to its sum of digits gives 21151096.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19195 + ... + 20266.

Almost surely, 2^21151096 is an apocalyptic number.

It is an amenable number.

21151096 is a deficient number, since it is larger than the sum of its proper divisors (19100144).

21151096 is a wasteful number, since it uses less digits than its factorization.

21151096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39534 (or 39530 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 21151096 is about 4599.0320720778. The cubic root of 21151096 is about 276.5525233572.

The spelling of 21151096 in words is "twenty-one million, one hundred fifty-one thousand, ninety-six".