531141894 has 16 divisors (see below), whose sum is σ = 1180315440. Its totient is φ = 177047280.

The previous prime is 531141893. The next prime is 531141899. The reversal of 531141894 is 498141135.

531141894 is a `hidden beast` number, since 531 + 1 + 41 + 89 + 4 = 666.

It is a super-2 number, since 2×531141894² = 564223423123814472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531141893) 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, 4917927 + ... + 4918034.

It is an arithmetic number, because the mean of its divisors is an integer number (73769715).

Almost surely, 2^531141894 is an apocalyptic number.

531141894 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

531141894 is an abundant number, since it is smaller than the sum of its proper divisors (649173546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531141894 is a wasteful number, since it uses less digits than its factorization.

531141894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9835972 (or 9835966 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 531141894 is about 23046.5158755071. The cubic root of 531141894 is about 809.8480098908.

The spelling of 531141894 in words is "five hundred thirty-one million, one hundred forty-one thousand, eight hundred ninety-four".