2140973 has 2 divisors, whose sum is σ = 2140974. Its totient is φ = 2140972.

The previous prime is 2140969. The next prime is 2140987. The reversal of 2140973 is 3790412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 879844 = 1123^2 + 938^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140973 - 2² = 2140969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070486 + 1070487.

It is an arithmetic number, because the mean of its divisors is an integer number (1070487).

2^2140973 is an apocalyptic number.

It is an amenable number.

2140973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140973 is an equidigital number, since it uses as much as digits as its factorization.

2140973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2140973 is about 1463.2064105928. The cubic root of 2140973 is about 128.8854019017.

It can be divided in two parts, 2140 and 973, that added together give a palindrome (3113).

The spelling of 2140973 in words is "two million, one hundred forty thousand, nine hundred seventy-three".