531148422 has 16 divisors (see below), whose sum is σ = 1214053632. Its totient is φ = 151756680.

The previous prime is 531148403. The next prime is 531148483. The reversal of 531148422 is 224841135.

It is a self number, because there is not a number n which added to its sum of digits gives 531148422.

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, 6323154 + ... + 6323237.

It is an arithmetic number, because the mean of its divisors is an integer number (75878352).

Almost surely, 2^531148422 is an apocalyptic number.

531148422 is an abundant number, since it is smaller than the sum of its proper divisors (682905210).

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

531148422 is a wasteful number, since it uses less digits than its factorization.

531148422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12646403.

The product of its digits is 7680, while the sum is 30.

The square root of 531148422 is about 23046.6575016856. The cubic root of 531148422 is about 809.8513276898.

Adding to 531148422 its reverse (224841135), we get a palindrome (755989557).

The spelling of 531148422 in words is "five hundred thirty-one million, one hundred forty-eight thousand, four hundred twenty-two".