2140721035 has 4 divisors (see below), whose sum is σ = 2568865248. Its totient is φ = 1712576824.

The previous prime is 2140721029. The next prime is 2140721047. The reversal of 2140721035 is 5301270412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2140721035 - 2²⁷ = 2006503307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214072099 + ... + 214072108.

It is an arithmetic number, because the mean of its divisors is an integer number (642216312).

Almost surely, 2^2140721035 is an apocalyptic number.

2140721035 is a deficient number, since it is larger than the sum of its proper divisors (428144213).

2140721035 is an equidigital number, since it uses as much as digits as its factorization.

2140721035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428144212.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2140721035 is about 46267.9266339005. The cubic root of 2140721035 is about 1288.8034565172.

Adding to 2140721035 its reverse (5301270412), we get a palindrome (7441991447).

The spelling of 2140721035 in words is "two billion, one hundred forty million, seven hundred twenty-one thousand, thirty-five".