1164772845 has 16 divisors (see below), whose sum is σ = 2070707520. Its totient is φ = 621212112.

The previous prime is 1164772837. The next prime is 1164772853. The reversal of 1164772845 is 5482774611.

1164772845 is a `hidden beast` number, since 116 + 477 + 28 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (1164772837) and next prime (1164772853).

It is not a de Polignac number, because 1164772845 - 2³ = 1164772837 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 1164772845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4313839 + ... + 4314108.

It is an arithmetic number, because the mean of its divisors is an integer number (129419220).

Almost surely, 2^1164772845 is an apocalyptic number.

1164772845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1164772845 is a deficient number, since it is larger than the sum of its proper divisors (905934675).

1164772845 is an equidigital number, since it uses as much as digits as its factorization.

1164772845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8627961 (or 8627955 counting only the distinct ones).

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

The square root of 1164772845 is about 34128.7685831177. The cubic root of 1164772845 is about 1052.1566692724.

The spelling of 1164772845 in words is "one billion, one hundred sixty-four million, seven hundred seventy-two thousand, eight hundred forty-five".