1031130757 has 6 divisors (see below), whose sum is σ = 1067913938. Its totient is φ = 995573712.

The previous prime is 1031130721. The next prime is 1031130761. The reversal of 1031130757 is 7570311301.

It can be written as a sum of positive squares in 3 ways, for example, as 382358916 + 648771841 = 19554^2 + 25471^2 .

It is not a de Polignac number, because 1031130757 - 2¹⁹ = 1030606469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031130557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612198 + ... + 613879.

Almost surely, 2^1031130757 is an apocalyptic number.

It is an amenable number.

1031130757 is a deficient number, since it is larger than the sum of its proper divisors (36783181).

1031130757 is an equidigital number, since it uses as much as digits as its factorization.

1031130757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226135 (or 1226106 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 1031130757 is about 32111.2247819980. The cubic root of 1031130757 is about 1010.2710630821.

The spelling of 1031130757 in words is "one billion, thirty-one million, one hundred thirty thousand, seven hundred fifty-seven".