1890093131 has 8 divisors (see below), whose sum is σ = 1895222784. Its totient is φ = 1884971880.

The previous prime is 1890093019. The next prime is 1890093193. The reversal of 1890093131 is 1313900981.

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 1890093131 - 2¹⁰ = 1890092107 is a prime.

It is a super-2 number, since 2×1890093131² = 7144904087706766322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1890093091 and 1890093100.

It is not an unprimeable number, because it can be changed into a prime (1890093431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791966 + ... + 794348.

It is an arithmetic number, because the mean of its divisors is an integer number (236902848).

Almost surely, 2^1890093131 is an apocalyptic number.

1890093131 is a deficient number, since it is larger than the sum of its proper divisors (5129653).

1890093131 is a wasteful number, since it uses less digits than its factorization.

1890093131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 1890093131 is about 43475.2013336339. The cubic root of 1890093131 is about 1236.4058975149.

The spelling of 1890093131 in words is "one billion, eight hundred ninety million, ninety-three thousand, one hundred thirty-one".