1531303412 has 12 divisors (see below), whose sum is σ = 2680147680. Its totient is φ = 765546936.

The previous prime is 1531303393. The next prime is 1531303421. The reversal of 1531303412 is 2143031351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13313 + ... + 56919.

It is an arithmetic number, because the mean of its divisors is an integer number (223345640).

Almost surely, 2^1531303412 is an apocalyptic number.

It is an amenable number.

1531303412 is a deficient number, since it is larger than the sum of its proper divisors (1148844268).

1531303412 is a wasteful number, since it uses less digits than its factorization.

1531303412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52390 (or 52388 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1531303412 is about 39131.8720737968. The cubic root of 1531303412 is about 1152.6224743621.

Adding to 1531303412 its reverse (2143031351), we get a palindrome (3674334763).

The spelling of 1531303412 in words is "one billion, five hundred thirty-one million, three hundred three thousand, four hundred twelve".