2141973 has 6 divisors (see below), whose sum is σ = 3093974. Its totient is φ = 1427976.

The previous prime is 2141947. The next prime is 2141977. The reversal of 2141973 is 3791412.

It can be written as a sum of positive squares in only one way, i.e., 1830609 + 311364 = 1353^2 + 558^2 .

It is not a de Polignac number, because 2141973 - 2⁵ = 2141941 is a prime.

It is a Duffinian number.

2141973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118990 + ... + 119007.

2^2141973 is an apocalyptic number.

It is an amenable number.

2141973 is a deficient number, since it is larger than the sum of its proper divisors (952001).

2141973 is a wasteful number, since it uses less digits than its factorization.

2141973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238003 (or 238000 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 2141973 is about 1463.5480859883. The cubic root of 2141973 is about 128.9054652624.

Adding to 2141973 its product of digits (1512), we get a triangular number (2143485 = T₂₀₇₀).

It can be divided in two parts, 214 and 1973, that added together give a 7-th power (2187 = 3⁷).

The spelling of 2141973 in words is "two million, one hundred forty-one thousand, nine hundred seventy-three".