1238500005 has 16 divisors (see below), whose sum is σ = 1985748480. Its totient is φ = 659150528.

The previous prime is 1238499991. The next prime is 1238500027. The reversal of 1238500005 is 5000058321.

It is a cyclic number.

It is not a de Polignac number, because 1238500005 - 2⁴ = 1238499989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79002 + ... + 93371.

It is an arithmetic number, because the mean of its divisors is an integer number (124109280).

Almost surely, 2^1238500005 is an apocalyptic number.

1238500005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1238500005 is a deficient number, since it is larger than the sum of its proper divisors (747248475).

1238500005 is a wasteful number, since it uses less digits than its factorization.

1238500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172860.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1238500005 is about 35192.3287805738. The cubic root of 1238500005 is about 1073.9036972072.

Adding to 1238500005 its reverse (5000058321), we get a palindrome (6238558326).

The spelling of 1238500005 in words is "one billion, two hundred thirty-eight million, five hundred thousand, five".