2054188531 has 2 divisors, whose sum is σ = 2054188532. Its totient is φ = 2054188530.

The previous prime is 2054188517. The next prime is 2054188547. The reversal of 2054188531 is 1358814502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2054188531 - 2⁷ = 2054188403 is a prime.

It is a super-2 number, since 2×2054188531² = 8439381041783875922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2054188831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027094265 + 1027094266.

It is an arithmetic number, because the mean of its divisors is an integer number (1027094266).

Almost surely, 2^2054188531 is an apocalyptic number.

2054188531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054188531 is an equidigital number, since it uses as much as digits as its factorization.

2054188531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 2054188531 is about 45323.1566751479. The cubic root of 2054188531 is about 1271.1986804177.

The spelling of 2054188531 in words is "two billion, fifty-four million, one hundred eighty-eight thousand, five hundred thirty-one".