1031485913 has 8 divisors (see below), whose sum is σ = 1057119336. Its totient is φ = 1005875200.

The previous prime is 1031485907. The next prime is 1031485919. The reversal of 1031485913 is 3195841301.

It is an interprime number because it is at equal distance from previous prime (1031485907) and next prime (1031485919).

It can be written as a sum of positive squares in 4 ways, for example, as 298321984 + 733163929 = 17272^2 + 27077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031485913 - 2¹⁴ = 1031469529 is a prime.

It is a super-3 number, since 3×1031485913³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031485919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120545 + ... + 128817.

It is an arithmetic number, because the mean of its divisors is an integer number (132139917).

Almost surely, 2^1031485913 is an apocalyptic number.

It is an amenable number.

1031485913 is a deficient number, since it is larger than the sum of its proper divisors (25633423).

1031485913 is an equidigital number, since it uses as much as digits as its factorization.

1031485913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11355.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1031485913 is about 32116.7543970433. The cubic root of 1031485913 is about 1010.3870401751.

The spelling of 1031485913 in words is "one billion, thirty-one million, four hundred eighty-five thousand, nine hundred thirteen".