1031547412 has 18 divisors (see below), whose sum is σ = 2099936202. Its totient is φ = 442091664.

The previous prime is 1031547409. The next prime is 1031547443. The reversal of 1031547412 is 2147451301.

1031547412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 960752016 + 70795396 = 30996^2 + 8414^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2631303 + ... + 2631694.

Almost surely, 2^1031547412 is an apocalyptic number.

It is an amenable number.

1031547412 is an abundant number, since it is smaller than the sum of its proper divisors (1068388790).

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

1031547412 is a wasteful number, since it uses less digits than its factorization.

1031547412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263015 (or 5263006 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1031547412 is about 32117.7118113978. The cubic root of 1031547412 is about 1010.4071201254.

Adding to 1031547412 its reverse (2147451301), we get a palindrome (3178998713).

The spelling of 1031547412 in words is "one billion, thirty-one million, five hundred forty-seven thousand, four hundred twelve".