1531314307 has 4 divisors (see below), whose sum is σ = 1531598080. Its totient is φ = 1531030536.

The previous prime is 1531314283. The next prime is 1531314341. The reversal of 1531314307 is 7034131351.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1531314307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1531324307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133632 + ... + 144637.

It is an arithmetic number, because the mean of its divisors is an integer number (382899520).

Almost surely, 2^1531314307 is an apocalyptic number.

1531314307 is a deficient number, since it is larger than the sum of its proper divisors (283773).

1531314307 is an equidigital number, since it uses as much as digits as its factorization.

1531314307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283772.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 1531314307 is about 39132.0112823249. The cubic root of 1531314307 is about 1152.6252079358.

Adding to 1531314307 its reverse (7034131351), we get a palindrome (8565445658).

The spelling of 1531314307 in words is "one billion, five hundred thirty-one million, three hundred fourteen thousand, three hundred seven".