1147628745 has 96 divisors (see below), whose sum is σ = 2140538400. Its totient is φ = 567705600.

The previous prime is 1147628737. The next prime is 1147628857. The reversal of 1147628745 is 5478267411.

1147628745 is a `hidden beast` number, since 1 + 14 + 7 + 628 + 7 + 4 + 5 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 553049289 + 594579456 = 23517^2 + 24384^2 .

It is not a de Polignac number, because 1147628745 - 2³ = 1147628737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1147628745.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4761825 + ... + 4762065.

It is an arithmetic number, because the mean of its divisors is an integer number (22297275).

Almost surely, 2^1147628745 is an apocalyptic number.

1147628745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1147628745 is a deficient number, since it is larger than the sum of its proper divisors (992909655).

1147628745 is a wasteful number, since it uses less digits than its factorization.

1147628745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 408 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 1147628745 is about 33876.6696267505. The cubic root of 1147628745 is about 1046.9689593784.

The spelling of 1147628745 in words is "one billion, one hundred forty-seven million, six hundred twenty-eight thousand, seven hundred forty-five".