2140993 has 2 divisors, whose sum is σ = 2140994. Its totient is φ = 2140992.

The previous prime is 2140987. The next prime is 2141033. The reversal of 2140993 is 3990412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1106704 + 1034289 = 1052^2 + 1017^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140993 - 2¹⁷ = 2009921 is a prime.

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, 1070496 + 1070497.

It is an arithmetic number, because the mean of its divisors is an integer number (1070497).

2^2140993 is an apocalyptic number.

It is an amenable number.

2140993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140993 is an equidigital number, since it uses as much as digits as its factorization.

2140993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2140993 is about 1463.2132448826. The cubic root of 2140993 is about 128.8858032302.

It can be divided in two parts, 21 and 40993, that added together give a palindrome (41014).

The spelling of 2140993 in words is "two million, one hundred forty thousand, nine hundred ninety-three".