1201160145 has 32 divisors (see below), whose sum is σ = 2024985600. Its totient is φ = 606308544.

The previous prime is 1201160141. The next prime is 1201160167. The reversal of 1201160145 is 5410611021.

It is not a de Polignac number, because 1201160145 - 2² = 1201160141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201160141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 534394 + ... + 536636.

It is an arithmetic number, because the mean of its divisors is an integer number (63280800).

Almost surely, 2^1201160145 is an apocalyptic number.

1201160145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201160145 is a deficient number, since it is larger than the sum of its proper divisors (823825455).

1201160145 is a wasteful number, since it uses less digits than its factorization.

1201160145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1201160145 is about 34657.7573567593. The cubic root of 1201160145 is about 1063.0009138886. Note that the first 3 decimals are identical.

Adding to 1201160145 its reverse (5410611021), we get a palindrome (6611771166).

The spelling of 1201160145 in words is "one billion, two hundred one million, one hundred sixty thousand, one hundred forty-five".