1358939871 has 12 divisors (see below), whose sum is σ = 1965983760. Its totient is φ = 904542720.

The previous prime is 1358939867. The next prime is 1358939891. The reversal of 1358939871 is 1789398531.

It is not a de Polignac number, because 1358939871 - 2² = 1358939867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1358939801) 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, 112011 + ... + 123548.

It is an arithmetic number, because the mean of its divisors is an integer number (163831980).

Almost surely, 2^1358939871 is an apocalyptic number.

1358939871 is a deficient number, since it is larger than the sum of its proper divisors (607043889).

1358939871 is a wasteful number, since it uses less digits than its factorization.

1358939871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236206 (or 236203 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 1358939871 is about 36863.8016352085. The cubic root of 1358939871 is about 1107.6436964990.

The spelling of 1358939871 in words is "one billion, three hundred fifty-eight million, nine hundred thirty-nine thousand, eight hundred seventy-one".