8959125391 has 4 divisors (see below), whose sum is σ = 8972845992. Its totient is φ = 8945404792.

The previous prime is 8959125389. The next prime is 8959125437. The reversal of 8959125391 is 1935219598.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8959125391 - 2¹ = 8959125389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8959125361) 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, 6859321 + ... + 6860626.

It is an arithmetic number, because the mean of its divisors is an integer number (2243211498).

Almost surely, 2^8959125391 is an apocalyptic number.

8959125391 is a deficient number, since it is larger than the sum of its proper divisors (13720601).

8959125391 is a wasteful number, since it uses less digits than its factorization.

8959125391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720600.

The product of its digits is 874800, while the sum is 52.

The square root of 8959125391 is about 94652.6565448641. The cubic root of 8959125391 is about 2076.9300581534.

The spelling of 8959125391 in words is "eight billion, nine hundred fifty-nine million, one hundred twenty-five thousand, three hundred ninety-one".