1870971113 has 4 divisors (see below), whose sum is σ = 2041059408. Its totient is φ = 1700882820.

The previous prime is 1870971107. The next prime is 1870971121. The reversal of 1870971113 is 3111790781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1870971113 - 2¹⁶ = 1870905577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1870971013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85044131 + ... + 85044152.

It is an arithmetic number, because the mean of its divisors is an integer number (510264852).

Almost surely, 2^1870971113 is an apocalyptic number.

It is an amenable number.

1870971113 is a deficient number, since it is larger than the sum of its proper divisors (170088295).

1870971113 is a wasteful number, since it uses less digits than its factorization.

1870971113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170088294.

The product of its (nonzero) digits is 10584, while the sum is 38.

The square root of 1870971113 is about 43254.7235917651. The cubic root of 1870971113 is about 1232.2221958351. Note that the first 3 decimals are identical.

The spelling of 1870971113 in words is "one billion, eight hundred seventy million, nine hundred seventy-one thousand, one hundred thirteen".