1243452134 has 8 divisors (see below), whose sum is σ = 1865338848. Its totient is φ = 621672520.

The previous prime is 1243452127. The next prime is 1243452137. The reversal of 1243452134 is 4312543421.

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 = 1243452097 and 1243452106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243452137) 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, 15779 + ... + 52305.

It is an arithmetic number, because the mean of its divisors is an integer number (233167356).

Almost surely, 2^1243452134 is an apocalyptic number.

1243452134 is a deficient number, since it is larger than the sum of its proper divisors (621886714).

1243452134 is a wasteful number, since it uses less digits than its factorization.

1243452134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53550.

The product of its digits is 11520, while the sum is 29.

The square root of 1243452134 is about 35262.6166641104. The cubic root of 1243452134 is about 1075.3331245224. Note that the first 3 decimals are identical.

Adding to 1243452134 its reverse (4312543421), we get a palindrome (5555995555).

The spelling of 1243452134 in words is "one billion, two hundred forty-three million, four hundred fifty-two thousand, one hundred thirty-four".