1031147928 has 32 divisors (see below), whose sum is σ = 2864300400. Its totient is φ = 343715904.

The previous prime is 1031147911. The next prime is 1031147933. The reversal of 1031147928 is 8297411301.

It is a happy number.

1031147928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1031147892 and 1031147901.

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, 2386701 + ... + 2387132.

Almost surely, 2^1031147928 is an apocalyptic number.

1031147928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1031147928 is an abundant number, since it is smaller than the sum of its proper divisors (1833152472).

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

1031147928 is a wasteful number, since it uses less digits than its factorization.

1031147928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773848 (or 4773838 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1031147928 is about 32111.4921484505. The cubic root of 1031147928 is about 1010.2766709283.

The spelling of 1031147928 in words is "one billion, thirty-one million, one hundred forty-seven thousand, nine hundred twenty-eight".