531005245 has 8 divisors (see below), whose sum is σ = 639034200. Its totient is φ = 423585600.

The previous prime is 531005221. The next prime is 531005269. The reversal of 531005245 is 542500135.

It is an interprime number because it is at equal distance from previous prime (531005221) and next prime (531005269).

It can be written as a sum of positive squares in 4 ways, for example, as 21780889 + 509224356 = 4667^2 + 22566^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531005245 - 2⁵ = 531005213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150406 + ... + 153895.

It is an arithmetic number, because the mean of its divisors is an integer number (79879275).

Almost surely, 2^531005245 is an apocalyptic number.

It is an amenable number.

531005245 is a deficient number, since it is larger than the sum of its proper divisors (108028955).

531005245 is a wasteful number, since it uses less digits than its factorization.

531005245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304655.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 531005245 is about 23043.5510501311. The cubic root of 531005245 is about 809.7785529882.

The spelling of 531005245 in words is "five hundred thirty-one million, five thousand, two hundred forty-five".