1164565545 has 32 divisors (see below), whose sum is σ = 2189061504. Its totient is φ = 521203200.

The previous prime is 1164565543. The next prime is 1164565559. The reversal of 1164565545 is 5455654611.

It is not a de Polignac number, because 1164565545 - 2¹ = 1164565543 is a prime.

It is a super-2 number, since 2×1164565545² = 2712425817202294050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1164565497 and 1164565506.

It is not an unprimeable number, because it can be changed into a prime (1164565543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269316 + ... + 273605.

It is an arithmetic number, because the mean of its divisors is an integer number (68408172).

Almost surely, 2^1164565545 is an apocalyptic number.

1164565545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1164565545 is a deficient number, since it is larger than the sum of its proper divisors (1024495959).

1164565545 is a wasteful number, since it uses less digits than its factorization.

1164565545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542953.

The product of its digits is 360000, while the sum is 42.

The square root of 1164565545 is about 34125.7314207329. The cubic root of 1164565545 is about 1052.0942465092.

The spelling of 1164565545 in words is "one billion, one hundred sixty-four million, five hundred sixty-five thousand, five hundred forty-five".