1145161152 has 70 divisors (see below), whose sum is σ = 3394631768. Its totient is φ = 381718656.

The previous prime is 1145161093. The next prime is 1145161219. The reversal of 1145161152 is 2511615411.

1145161152 is a `hidden beast` number, since 1 + 1 + 45 + 1 + 611 + 5 + 2 = 666.

It is a super-2 number, since 2×1145161152² = 2622788128099934208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 105268 + ... + 115635.

Almost surely, 2^1145161152 is an apocalyptic number.

1145161152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145161152 is an abundant number, since it is smaller than the sum of its proper divisors (2249470616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145161152 is an equidigital number, since it uses as much as digits as its factorization.

1145161152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220927 (or 220908 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 1145161152 is about 33840.2297864539. The cubic root of 1145161152 is about 1046.2180350199.

Adding to 1145161152 its reverse (2511615411), we get a palindrome (3656776563).

The spelling of 1145161152 in words is "one billion, one hundred forty-five million, one hundred sixty-one thousand, one hundred fifty-two".