1145161234 has 8 divisors (see below), whose sum is σ = 1963133568. Its totient is φ = 490783380.

The previous prime is 1145161231. The next prime is 1145161249. The reversal of 1145161234 is 4321615411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1145161234² = 2622788503712805512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145161231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40898602 + ... + 40898629.

It is an arithmetic number, because the mean of its divisors is an integer number (245391696).

Almost surely, 2^1145161234 is an apocalyptic number.

1145161234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1145161234 is a deficient number, since it is larger than the sum of its proper divisors (817972334).

1145161234 is an equidigital number, since it uses as much as digits as its factorization.

1145161234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81797240.

The product of its digits is 2880, while the sum is 28.

The square root of 1145161234 is about 33840.2309980295. The cubic root of 1145161234 is about 1046.2180599916.

Adding to 1145161234 its reverse (4321615411), we get a palindrome (5466776645).

The spelling of 1145161234 in words is "one billion, one hundred forty-five million, one hundred sixty-one thousand, two hundred thirty-four".