1145343234 has 16 divisors (see below), whose sum is σ = 2617927488. Its totient is φ = 327240912.

The previous prime is 1145343191. The next prime is 1145343239. The reversal of 1145343234 is 4323435411.

It is a super-2 number, since 2×1145343234² = 2623622247339157512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145343239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13634997 + ... + 13635080.

It is an arithmetic number, because the mean of its divisors is an integer number (163620468).

Almost surely, 2^1145343234 is an apocalyptic number.

1145343234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1145343234 is an abundant number, since it is smaller than the sum of its proper divisors (1472584254).

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

1145343234 is a wasteful number, since it uses less digits than its factorization.

1145343234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27270089.

The product of its digits is 17280, while the sum is 30.

The square root of 1145343234 is about 33842.9199981325. The cubic root of 1145343234 is about 1046.2734820564.

Adding to 1145343234 its reverse (4323435411), we get a palindrome (5468778645).

The spelling of 1145343234 in words is "one billion, one hundred forty-five million, three hundred forty-three thousand, two hundred thirty-four".