2101151 has 4 divisors (see below), whose sum is σ = 2262792. Its totient is φ = 1939512.

The previous prime is 2101139. The next prime is 2101157. The reversal of 2101151 is 1511012.

2101151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101151 - 2¹⁴ = 2084767 is a prime.

It is a super-3 number, since 3×2101151³ = 27828708233313437853, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101157) 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 3 ways as a sum of consecutive naturals, for example, 80801 + ... + 80826.

It is an arithmetic number, because the mean of its divisors is an integer number (565698).

2^2101151 is an apocalyptic number.

2101151 is a deficient number, since it is larger than the sum of its proper divisors (161641).

2101151 is a wasteful number, since it uses less digits than its factorization.

2101151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161640.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 2101151 is about 1449.5347529466. The cubic root of 2101151 is about 128.0813082037.

Adding to 2101151 its reverse (1511012), we get a palindrome (3612163).

The spelling of 2101151 in words is "two million, one hundred one thousand, one hundred fifty-one".