2149701 has 16 divisors (see below), whose sum is σ = 3089088. Its totient is φ = 1324800.

The previous prime is 2149687. The next prime is 2149703. The reversal of 2149701 is 1079412.

2149701 is a nontrivial binomial coefficient, being equal to C(2074, 2).

It is not a de Polignac number, because 2149701 - 2⁷ = 2149573 is a prime.

It is an Ulam number.

It is a Curzon number.

2149701 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2766 + ... + 3456.

It is an arithmetic number, because the mean of its divisors is an integer number (193068).

2^2149701 is an apocalyptic number.

2149701 is the 2073-rd triangular number and also the 1037-th hexagonal number.

It is an amenable number.

2149701 is a deficient number, since it is larger than the sum of its proper divisors (939387).

2149701 is a wasteful number, since it uses less digits than its factorization.

2149701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 2149701 is about 1466.1858681627. The cubic root of 2149701 is about 129.0603047171.

It can be divided in two parts, 2149 and 701, that added together give a triangular number (2850 = T₇₅).

The spelling of 2149701 in words is "two million, one hundred forty-nine thousand, seven hundred one".