1309753641 has 16 divisors (see below), whose sum is σ = 2042230784. Its totient is φ = 731024784.

The previous prime is 1309753609. The next prime is 1309753673. The reversal of 1309753641 is 1463579031.

It is an interprime number because it is at equal distance from previous prime (1309753609) and next prime (1309753673).

It is not a de Polignac number, because 1309753641 - 2⁵ = 1309753609 is a prime.

It is a super-2 number, since 2×1309753641² = 3430909200225513762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1309753641.

It is not an unprimeable number, because it can be changed into a prime (1309753681) 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 15 ways as a sum of consecutive naturals, for example, 724321 + ... + 726126.

It is an arithmetic number, because the mean of its divisors is an integer number (127639424).

Almost surely, 2^1309753641 is an apocalyptic number.

It is an amenable number.

1309753641 is a deficient number, since it is larger than the sum of its proper divisors (732477143).

1309753641 is a wasteful number, since it uses less digits than its factorization.

1309753641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450500.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 1309753641 is about 36190.5186616605. The cubic root of 1309753641 is about 1094.1155861929.

The spelling of 1309753641 in words is "one billion, three hundred nine million, seven hundred fifty-three thousand, six hundred forty-one".