2140274309 has 2 divisors, whose sum is σ = 2140274310. Its totient is φ = 2140274308.

The previous prime is 2140274299. The next prime is 2140274341. The reversal of 2140274309 is 9034720412.

It is an a-pointer prime, because the next prime (2140274341) can be obtained adding 2140274309 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2090501284 + 49773025 = 45722^2 + 7055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140274309 - 2⁸ = 2140274053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140274359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070137154 + 1070137155.

It is an arithmetic number, because the mean of its divisors is an integer number (1070137155).

Almost surely, 2^2140274309 is an apocalyptic number.

It is an amenable number.

2140274309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140274309 is an equidigital number, since it uses as much as digits as its factorization.

2140274309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2140274309 is about 46263.0987829393. The cubic root of 2140274309 is about 1288.7138010450.

The spelling of 2140274309 in words is "two billion, one hundred forty million, two hundred seventy-four thousand, three hundred nine".