2140415243 has 16 divisors (see below), whose sum is σ = 2348476416. Its totient is φ = 1941985920.

The previous prime is 2140415239. The next prime is 2140415273. The reversal of 2140415243 is 3425140412.

It is a cyclic number.

It is not a de Polignac number, because 2140415243 - 2² = 2140415239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140415273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130880 + ... + 146322.

It is an arithmetic number, because the mean of its divisors is an integer number (146779776).

Almost surely, 2^2140415243 is an apocalyptic number.

2140415243 is a deficient number, since it is larger than the sum of its proper divisors (208061173).

2140415243 is a wasteful number, since it uses less digits than its factorization.

2140415243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15754.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2140415243 is about 46264.6219372859. The cubic root of 2140415243 is about 1288.7420870772.

Adding to 2140415243 its reverse (3425140412), we get a palindrome (5565555655).

The spelling of 2140415243 in words is "two billion, one hundred forty million, four hundred fifteen thousand, two hundred forty-three".