1243407112 has 16 divisors (see below), whose sum is σ = 2334282300. Its totient is φ = 620931840.

The previous prime is 1243407107. The next prime is 1243407119. The reversal of 1243407112 is 2117043421.

It can be written as a sum of positive squares in 2 ways, for example, as 951475716 + 291931396 = 30846^2 + 17086^2 .

It is a super-2 number, since 2×1243407112² = 3092122492344361088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1243407119) 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, 89589 + ... + 102532.

Almost surely, 2^1243407112 is an apocalyptic number.

It is an amenable number.

1243407112 is a deficient number, since it is larger than the sum of its proper divisors (1090875188).

1243407112 is a wasteful number, since it uses less digits than its factorization.

1243407112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192936 (or 192932 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1243407112 is about 35261.9782768920. The cubic root of 1243407112 is about 1075.3201460755.

The spelling of 1243407112 in words is "one billion, two hundred forty-three million, four hundred seven thousand, one hundred twelve".