2140012445 has 8 divisors (see below), whose sum is σ = 2719074744. Its totient is φ = 1611303424.

The previous prime is 2140012421. The next prime is 2140012471. The reversal of 2140012445 is 5442100412.

It can be written as a sum of positive squares in 4 ways, for example, as 175218169 + 1964794276 = 13237^2 + 44326^2 .

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 2140012445 - 2¹² = 2140008349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140012445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12588224 + ... + 12588393.

It is an arithmetic number, because the mean of its divisors is an integer number (339884343).

Almost surely, 2^2140012445 is an apocalyptic number.

It is an amenable number.

2140012445 is a deficient number, since it is larger than the sum of its proper divisors (579062299).

2140012445 is a wasteful number, since it uses less digits than its factorization.

2140012445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25176639.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2140012445 is about 46260.2685357532. The cubic root of 2140012445 is about 1288.6612405681.

Adding to 2140012445 its reverse (5442100412), we get a palindrome (7582112857).

The spelling of 2140012445 in words is "two billion, one hundred forty million, twelve thousand, four hundred forty-five".