1243134004 has 24 divisors (see below), whose sum is σ = 2495525760. Its totient is φ = 530787936.

The previous prime is 1243134001. The next prime is 1243134019. The reversal of 1243134004 is 4004313421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243134001) 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, 74992 + ... + 90055.

It is an arithmetic number, because the mean of its divisors is an integer number (103980240).

Almost surely, 2^1243134004 is an apocalyptic number.

1243134004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1243134004 is an abundant number, since it is smaller than the sum of its proper divisors (1252391756).

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

1243134004 is a wasteful number, since it uses less digits than its factorization.

1243134004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165327 (or 165325 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1243134004 is about 35258.1055078120. The cubic root of 1243134004 is about 1075.2414107909.

Adding to 1243134004 its reverse (4004313421), we get a palindrome (5247447425).

The spelling of 1243134004 in words is "one billion, two hundred forty-three million, one hundred thirty-four thousand, four".