1264747045 has 8 divisors (see below), whose sum is σ = 1606972824. Its totient is φ = 952280064.

The previous prime is 1264747031. The next prime is 1264747051. The reversal of 1264747045 is 5407474621.

It can be written as a sum of positive squares in 4 ways, for example, as 624100324 + 640646721 = 24982^2 + 25311^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1264747045 - 2¹⁵ = 1264714277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1264746989 and 1264747007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7439604 + ... + 7439773.

It is an arithmetic number, because the mean of its divisors is an integer number (200871603).

Almost surely, 2^1264747045 is an apocalyptic number.

It is an amenable number.

1264747045 is a deficient number, since it is larger than the sum of its proper divisors (342225779).

1264747045 is a wasteful number, since it uses less digits than its factorization.

1264747045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14879399.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 1264747045 is about 35563.2822585318. The cubic root of 1264747045 is about 1081.4370003230.

The spelling of 1264747045 in words is "one billion, two hundred sixty-four million, seven hundred forty-seven thousand, forty-five".