2921151 has 8 divisors (see below), whose sum is σ = 3904560. Its totient is φ = 1942592.

The previous prime is 2921147. The next prime is 2921173. The reversal of 2921151 is 1511292.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2921151 - 2² = 2921147 is a prime.

2921151 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 571 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (488070).

2^2921151 is an apocalyptic number.

2921151 is a deficient number, since it is larger than the sum of its proper divisors (983409).

2921151 is a wasteful number, since it uses less digits than its factorization.

2921151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425.

The product of its digits is 180, while the sum is 21.

The square root of 2921151 is about 1709.1375017827. The cubic root of 2921151 is about 142.9501676497.

The spelling of 2921151 in words is "two million, nine hundred twenty-one thousand, one hundred fifty-one".