2054193487 has 4 divisors (see below), whose sum is σ = 2175028416. Its totient is φ = 1933358560.

The previous prime is 2054193413. The next prime is 2054193509. The reversal of 2054193487 is 7843914502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054193487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054193587) 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, 60417439 + ... + 60417472.

It is an arithmetic number, because the mean of its divisors is an integer number (543757104).

Almost surely, 2^2054193487 is an apocalyptic number.

2054193487 is a deficient number, since it is larger than the sum of its proper divisors (120834929).

2054193487 is a wasteful number, since it uses less digits than its factorization.

2054193487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120834928.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 2054193487 is about 45323.2113491531. The cubic root of 2054193487 is about 1271.1997027283.

The spelling of 2054193487 in words is "two billion, fifty-four million, one hundred ninety-three thousand, four hundred eighty-seven".