1264109353 has 6 divisors (see below), whose sum is σ = 1368828654. Its totient is φ = 1166870016.

The previous prime is 1264109303. The next prime is 1264109369. The reversal of 1264109353 is 3539014621.

It can be written as a sum of positive squares in 3 ways, for example, as 19642624 + 1244466729 = 4432^2 + 35277^2 .

It is not a de Polignac number, because 1264109353 - 2¹³ = 1264101161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264109303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3739800 + ... + 3740137.

It is an arithmetic number, because the mean of its divisors is an integer number (228138109).

Almost surely, 2^1264109353 is an apocalyptic number.

1264109353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1264109353 is a deficient number, since it is larger than the sum of its proper divisors (104719301).

1264109353 is an equidigital number, since it uses as much as digits as its factorization.

1264109353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7479963 (or 7479950 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 1264109353 is about 35554.3155327170. The cubic root of 1264109353 is about 1081.2552143912.

The spelling of 1264109353 in words is "one billion, two hundred sixty-four million, one hundred nine thousand, three hundred fifty-three".