1145231534 has 8 divisors (see below), whose sum is σ = 1723038168. Its totient is φ = 570885480.

The previous prime is 1145231533. The next prime is 1145231569. The reversal of 1145231534 is 4351325411.

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

It is a junction number, because it is equal to n+sod(n) for n = 1145231497 and 1145231506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145231531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864317 + ... + 865640.

It is an arithmetic number, because the mean of its divisors is an integer number (215379771).

Almost surely, 2^1145231534 is an apocalyptic number.

1145231534 is a deficient number, since it is larger than the sum of its proper divisors (577806634).

1145231534 is a wasteful number, since it uses less digits than its factorization.

1145231534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730290.

The product of its digits is 7200, while the sum is 29.

The square root of 1145231534 is about 33841.2696865824. The cubic root of 1145231534 is about 1046.2394682214.

Adding to 1145231534 its reverse (4351325411), we get a palindrome (5496556945).

The spelling of 1145231534 in words is "one billion, one hundred forty-five million, two hundred thirty-one thousand, five hundred thirty-four".