531214245 has 24 divisors (see below), whose sum is σ = 943232472. Its totient is φ = 276403200.

The previous prime is 531214241. The next prime is 531214259. The reversal of 531214245 is 542412135.

It can be written as a sum of positive squares in 4 ways, for example, as 75220929 + 455993316 = 8673^2 + 21354^2 .

It is not a de Polignac number, because 531214245 - 2² = 531214241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531214241) 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 in 23 ways as a sum of consecutive naturals, for example, 142116 + ... + 145805.

It is an arithmetic number, because the mean of its divisors is an integer number (39301353).

Almost surely, 2^531214245 is an apocalyptic number.

It is an amenable number.

531214245 is a deficient number, since it is larger than the sum of its proper divisors (412018227).

531214245 is a wasteful number, since it uses less digits than its factorization.

531214245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287973 (or 287970 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 531214245 is about 23048.0854953291. The cubic root of 531214245 is about 809.8847801360.

The spelling of 531214245 in words is "five hundred thirty-one million, two hundred fourteen thousand, two hundred forty-five".