1345431315 has 16 divisors (see below), whose sum is σ = 2155904928. Its totient is φ = 716491776.

The previous prime is 1345431301. The next prime is 1345431317. The reversal of 1345431315 is 5131345431.

It is not a de Polignac number, because 1345431315 - 2¹⁸ = 1345169171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345431317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56544 + ... + 76733.

It is an arithmetic number, because the mean of its divisors is an integer number (134744058).

Almost surely, 2^1345431315 is an apocalyptic number.

1345431315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1345431315 is a deficient number, since it is larger than the sum of its proper divisors (810473613).

1345431315 is a wasteful number, since it uses less digits than its factorization.

1345431315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133958.

The product of its digits is 10800, while the sum is 30.

The square root of 1345431315 is about 36680.1215237900. The cubic root of 1345431315 is about 1103.9612864825.

Adding to 1345431315 its reverse (5131345431), we get a palindrome (6476776746).

The spelling of 1345431315 in words is "one billion, three hundred forty-five million, four hundred thirty-one thousand, three hundred fifteen".