1232143534 has 16 divisors (see below), whose sum is σ = 1957362048. Its totient is φ = 580489272.

The previous prime is 1232143513. The next prime is 1232143537. The reversal of 1232143534 is 4353412321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232143537) 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 7 ways as a sum of consecutive naturals, for example, 196812 + ... + 202975.

It is an arithmetic number, because the mean of its divisors is an integer number (122335128).

Almost surely, 2^1232143534 is an apocalyptic number.

1232143534 is a deficient number, since it is larger than the sum of its proper divisors (725218514).

1232143534 is a wasteful number, since it uses less digits than its factorization.

1232143534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399879.

The product of its digits is 8640, while the sum is 28.

The square root of 1232143534 is about 35101.9021421917. The cubic root of 1232143534 is about 1072.0633124920.

Adding to 1232143534 its reverse (4353412321), we get a palindrome (5585555855).

It can be divided in two parts, 12321 and 43534, that added together give a palindrome (55855).

The spelling of 1232143534 in words is "one billion, two hundred thirty-two million, one hundred forty-three thousand, five hundred thirty-four".