1890926113 has 4 divisors (see below), whose sum is σ = 1990448560. Its totient is φ = 1791403668.

The previous prime is 1890926101. The next prime is 1890926153. The reversal of 1890926113 is 3116290981.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3116290981 = 977 ⋅3189653.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1890926113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1890926153) 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, 49761195 + ... + 49761232.

It is an arithmetic number, because the mean of its divisors is an integer number (497612140).

Almost surely, 2^1890926113 is an apocalyptic number.

It is an amenable number.

1890926113 is a deficient number, since it is larger than the sum of its proper divisors (99522447).

1890926113 is an equidigital number, since it uses as much as digits as its factorization.

1890926113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99522446.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1890926113 is about 43484.7802455066. The cubic root of 1890926113 is about 1236.5875027810.

The spelling of 1890926113 in words is "one billion, eight hundred ninety million, nine hundred twenty-six thousand, one hundred thirteen".