1031430349 has 4 divisors (see below), whose sum is σ = 1032991420. Its totient is φ = 1029869280.

The previous prime is 1031430343. The next prime is 1031430353. The reversal of 1031430349 is 9430341301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 779414724 + 252015625 = 27918^2 + 15875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031430349 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 (1031430343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779544 + ... + 780865.

It is an arithmetic number, because the mean of its divisors is an integer number (258247855).

Almost surely, 2^1031430349 is an apocalyptic number.

It is an amenable number.

1031430349 is a deficient number, since it is larger than the sum of its proper divisors (1561071).

1031430349 is an equidigital number, since it uses as much as digits as its factorization.

1031430349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561070.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1031430349 is about 32115.8893540254. The cubic root of 1031430349 is about 1010.3688973667.

The spelling of 1031430349 in words is "one billion, thirty-one million, four hundred thirty thousand, three hundred forty-nine".