2157011 has 8 divisors (see below), whose sum is σ = 2358144. Its totient is φ = 1964160.

The previous prime is 2157007. The next prime is 2157017. The reversal of 2157011 is 1107512.

2157011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2157011 - 2² = 2157007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2157017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520 + ... + 2573.

It is an arithmetic number, because the mean of its divisors is an integer number (294768).

2^2157011 is an apocalyptic number.

2157011 is a deficient number, since it is larger than the sum of its proper divisors (201133).

2157011 is a wasteful number, since it uses less digits than its factorization.

2157011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 2157011 is about 1468.6766151880. The cubic root of 2157011 is about 129.2064279025.

The spelling of 2157011 in words is "two million, one hundred fifty-seven thousand, eleven".