1047216745 has 8 divisors (see below), whose sum is σ = 1330581384. Its totient is φ = 788492544.

The previous prime is 1047216743. The next prime is 1047216757. The reversal of 1047216745 is 5476127401.

It can be written as a sum of positive squares in 4 ways, for example, as 9603801 + 1037612944 = 3099^2 + 32212^2 .

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 1047216745 - 2¹ = 1047216743 is a prime.

It is a super-2 number, since 2×1047216745² = 2193325822016790050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047216743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6160014 + ... + 6160183.

It is an arithmetic number, because the mean of its divisors is an integer number (166322673).

Almost surely, 2^1047216745 is an apocalyptic number.

It is an amenable number.

1047216745 is a deficient number, since it is larger than the sum of its proper divisors (283364639).

1047216745 is a wasteful number, since it uses less digits than its factorization.

1047216745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320219.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 1047216745 is about 32360.7284374131. The cubic root of 1047216745 is about 1015.4975017480.

The spelling of 1047216745 in words is "one billion, forty-seven million, two hundred sixteen thousand, seven hundred forty-five".