2140023469 has 2 divisors, whose sum is σ = 2140023470. Its totient is φ = 2140023468.

The previous prime is 2140023407. The next prime is 2140023497. The reversal of 2140023469 is 9643200412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1690032100 + 449991369 = 41110^2 + 21213^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140023469 - 2⁹ = 2140022957 is a prime.

It is a super-2 number, since 2×2140023469² = 9159400895741587922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2140023469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140023499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070011734 + 1070011735.

It is an arithmetic number, because the mean of its divisors is an integer number (1070011735).

Almost surely, 2^2140023469 is an apocalyptic number.

It is an amenable number.

2140023469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140023469 is an equidigital number, since it uses as much as digits as its factorization.

2140023469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2140023469 is about 46260.3876875238. The cubic root of 2140023469 is about 1288.6634533554.

The spelling of 2140023469 in words is "two billion, one hundred forty million, twenty-three thousand, four hundred sixty-nine".