531151340 has 12 divisors (see below), whose sum is σ = 1115417856. Its totient is φ = 212460528.

The previous prime is 531151333. The next prime is 531151343. The reversal of 531151340 is 43151135.

It is not an unprimeable number, because it can be changed into a prime (531151343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13278764 + ... + 13278803.

It is an arithmetic number, because the mean of its divisors is an integer number (92951488).

Almost surely, 2^531151340 is an apocalyptic number.

It is an amenable number.

531151340 is an abundant number, since it is smaller than the sum of its proper divisors (584266516).

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

531151340 is a wasteful number, since it uses less digits than its factorization.

531151340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26557576 (or 26557574 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 531151340 is about 23046.7208079588. The cubic root of 531151340 is about 809.8528107291.

The spelling of 531151340 in words is "five hundred thirty-one million, one hundred fifty-one thousand, three hundred forty".