2140987741 has 2 divisors, whose sum is σ = 2140987742. Its totient is φ = 2140987740.

The previous prime is 2140987711. The next prime is 2140987781. The reversal of 2140987741 is 1477890412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2138692516 + 2295225 = 46246^2 + 1515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140987741 is a prime.

It is a super-2 number, since 2×2140987741² = 9167657014224566162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140987711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070493870 + 1070493871.

It is an arithmetic number, because the mean of its divisors is an integer number (1070493871).

Almost surely, 2^2140987741 is an apocalyptic number.

It is an amenable number.

2140987741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140987741 is an equidigital number, since it uses as much as digits as its factorization.

2140987741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 2140987741 is about 46270.8087350978. The cubic root of 2140987741 is about 1288.8569770111.

The spelling of 2140987741 in words is "two billion, one hundred forty million, nine hundred eighty-seven thousand, seven hundred forty-one".