1147477545 has 24 divisors (see below), whose sum is σ = 2093644800. Its totient is φ = 579777696.

The previous prime is 1147477517. The next prime is 1147477549. The reversal of 1147477545 is 5457747411.

It is not a de Polignac number, because 1147477545 - 2⁷ = 1147477417 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 1147477545.

It is not an unprimeable number, because it can be changed into a prime (1147477549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670185 + ... + 671894.

It is an arithmetic number, because the mean of its divisors is an integer number (87235200).

Almost surely, 2^1147477545 is an apocalyptic number.

1147477545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1147477545 is a deficient number, since it is larger than the sum of its proper divisors (946167255).

1147477545 is a wasteful number, since it uses less digits than its factorization.

1147477545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342109 (or 1342106 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The square root of 1147477545 is about 33874.4379289163. The cubic root of 1147477545 is about 1046.9229779987.

The spelling of 1147477545 in words is "one billion, one hundred forty-seven million, four hundred seventy-seven thousand, five hundred forty-five".