1243138014 has 24 divisors (see below), whose sum is σ = 2694621072. Its totient is φ = 414201600.

The previous prime is 1243137989. The next prime is 1243138019. The reversal of 1243138014 is 4108313421.

1243138014 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243138019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32382 + ... + 59454.

It is an arithmetic number, because the mean of its divisors is an integer number (112275878).

Almost surely, 2^1243138014 is an apocalyptic number.

1243138014 is an abundant number, since it is smaller than the sum of its proper divisors (1451483058).

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

1243138014 is a wasteful number, since it uses less digits than its factorization.

1243138014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29632 (or 29629 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1243138014 is about 35258.1623741227. The cubic root of 1243138014 is about 1075.2425669316.

The spelling of 1243138014 in words is "one billion, two hundred forty-three million, one hundred thirty-eight thousand, fourteen".