1145636145 has 48 divisors (see below), whose sum is σ = 2045481984. Its totient is φ = 592800000.

The previous prime is 1145636123. The next prime is 1145636159. The reversal of 1145636145 is 5416365411.

1145636145 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 636 + 14 + 5 = 666.

It is not a de Polignac number, because 1145636145 - 2⁵ = 1145636113 is a prime.

It is a super-2 number, since 2×1145636145² = 2624964353460922050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 350770 + ... + 354020.

It is an arithmetic number, because the mean of its divisors is an integer number (42614208).

Almost surely, 2^1145636145 is an apocalyptic number.

1145636145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145636145 is a deficient number, since it is larger than the sum of its proper divisors (899845839).

1145636145 is a wasteful number, since it uses less digits than its factorization.

1145636145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 3491 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 1145636145 is about 33847.2472292800. The cubic root of 1145636145 is about 1046.3626660615.

The spelling of 1145636145 in words is "one billion, one hundred forty-five million, six hundred thirty-six thousand, one hundred forty-five".