1243344142 has 8 divisors (see below), whose sum is σ = 1865169432. Its totient is φ = 621621000.

The previous prime is 1243344131. The next prime is 1243344161. The reversal of 1243344142 is 2414433421.

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

It is a super-3 number, since 3×1243344142³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1243344142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24517 + ... + 55567.

It is an arithmetic number, because the mean of its divisors is an integer number (233146179).

Almost surely, 2^1243344142 is an apocalyptic number.

1243344142 is a deficient number, since it is larger than the sum of its proper divisors (621825290).

1243344142 is a wasteful number, since it uses less digits than its factorization.

1243344142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51074.

The product of its digits is 9216, while the sum is 28.

The square root of 1243344142 is about 35261.0853775093. The cubic root of 1243344142 is about 1075.3019932512.

Adding to 1243344142 its reverse (2414433421), we get a palindrome (3657777563).

The spelling of 1243344142 in words is "one billion, two hundred forty-three million, three hundred forty-four thousand, one hundred forty-two".