1870040113 has 4 divisors (see below), whose sum is σ = 1870174708. Its totient is φ = 1869905520.

The previous prime is 1870040083. The next prime is 1870040119. The reversal of 1870040113 is 3110400781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3110400781 = 3709 ⋅838609.

It can be written as a sum of positive squares in 2 ways, for example, as 222248464 + 1647791649 = 14908^2 + 40593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1870040113 - 2⁹ = 1870039601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1870040119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43698 + ... + 75163.

It is an arithmetic number, because the mean of its divisors is an integer number (467543677).

Almost surely, 2^1870040113 is an apocalyptic number.

It is an amenable number.

1870040113 is a deficient number, since it is larger than the sum of its proper divisors (134595).

1870040113 is a wasteful number, since it uses less digits than its factorization.

1870040113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134594.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1870040113 is about 43243.9604222370. The cubic root of 1870040113 is about 1232.0177762885.

Adding to 1870040113 its reverse (3110400781), we get a palindrome (4980440894).

The spelling of 1870040113 in words is "one billion, eight hundred seventy million, forty thousand, one hundred thirteen".