2140246587 has 8 divisors (see below), whose sum is σ = 2854316880. Its totient is φ = 1426503680.

The previous prime is 2140246571. The next prime is 2140246597. The reversal of 2140246587 is 7856420412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2140246587 - 2⁴ = 2140246571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2140246547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66162 + ... + 93047.

It is an arithmetic number, because the mean of its divisors is an integer number (356789610).

Almost surely, 2^2140246587 is an apocalyptic number.

2140246587 is a deficient number, since it is larger than the sum of its proper divisors (714070293).

2140246587 is a wasteful number, since it uses less digits than its factorization.

2140246587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163693.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2140246587 is about 46262.7991695271. The cubic root of 2140246587 is about 1288.7082369796.

Adding to 2140246587 its reverse (7856420412), we get a palindrome (9996666999).

The spelling of 2140246587 in words is "two billion, one hundred forty million, two hundred forty-six thousand, five hundred eighty-seven".