531954090 has 48 divisors (see below), whose sum is σ = 1416824136. Its totient is φ = 138393600.

The previous prime is 531954053. The next prime is 531954103. The reversal of 531954090 is 90459135.

It can be written as a sum of positive squares in 4 ways, for example, as 250620561 + 281333529 = 15831^2 + 16773^2 .

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 68391 + ... + 75770.

Almost surely, 2^531954090 is an apocalyptic number.

531954090 is an abundant number, since it is smaller than the sum of its proper divisors (884870046).

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

531954090 is a wasteful number, since it uses less digits than its factorization.

531954090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144215 (or 144212 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 531954090 is about 23064.1299424019. The cubic root of 531954090 is about 810.2605928793.

The spelling of 531954090 in words is "five hundred thirty-one million, nine hundred fifty-four thousand, ninety".