2151149 has 24 divisors (see below), whose sum is σ = 2949408. Its totient is φ = 1542240.

The previous prime is 2151139. The next prime is 2151157. The reversal of 2151149 is 9411512.

It is a happy number.

2151149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2151149 - 2¹² = 2147053 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151119) 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 23 ways as a sum of consecutive naturals, for example, 6854 + ... + 7160.

It is an arithmetic number, because the mean of its divisors is an integer number (122892).

2^2151149 is an apocalyptic number.

It is an amenable number.

2151149 is a deficient number, since it is larger than the sum of its proper divisors (798259).

2151149 is a wasteful number, since it uses less digits than its factorization.

2151149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 338 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 2151149 is about 1466.6795832765. The cubic root of 2151149 is about 129.0892757814.

It can be divided in two parts, 2 and 151149, that added together give a palindrome (151151).

The spelling of 2151149 in words is "two million, one hundred fifty-one thousand, one hundred forty-nine".