1309429915 has 8 divisors (see below), whose sum is σ = 1609640928. Its totient is φ = 1021993920.

The previous prime is 1309429903. The next prime is 1309429921. The reversal of 1309429915 is 5199249031.

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

It is not a de Polignac number, because 1309429915 - 2⁷ = 1309429787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3193527 + ... + 3193936.

It is an arithmetic number, because the mean of its divisors is an integer number (201205116).

Almost surely, 2^1309429915 is an apocalyptic number.

1309429915 is a deficient number, since it is larger than the sum of its proper divisors (300211013).

1309429915 is an equidigital number, since it uses as much as digits as its factorization.

1309429915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387509.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 1309429915 is about 36186.0458602484. The cubic root of 1309429915 is about 1094.0254361991.

The spelling of 1309429915 in words is "one billion, three hundred nine million, four hundred twenty-nine thousand, nine hundred fifteen".