1531400124 has 24 divisors (see below), whose sum is σ = 3688534528. Its totient is φ = 493999920.

The previous prime is 1531400119. The next prime is 1531400131. The reversal of 1531400124 is 4210041351.

It is a self number, because there is not a number n which added to its sum of digits gives 1531400124.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2057962 + ... + 2058705.

Almost surely, 2^1531400124 is an apocalyptic number.

It is an amenable number.

1531400124 is an abundant number, since it is smaller than the sum of its proper divisors (2157134404).

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

1531400124 is a wasteful number, since it uses less digits than its factorization.

1531400124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116705 (or 4116703 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1531400124 is about 39133.1077733420. The cubic root of 1531400124 is about 1152.6467391109.

Adding to 1531400124 its reverse (4210041351), we get a palindrome (5741441475).

The spelling of 1531400124 in words is "one billion, five hundred thirty-one million, four hundred thousand, one hundred twenty-four".