900139093 has 8 divisors (see below), whose sum is σ = 1029434112. Its totient is φ = 771020016.

The previous prime is 900139073. The next prime is 900139099. The reversal of 900139093 is 390931009.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 900139093 - 2⁹ = 900138581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900139099) 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, 32830 + ... + 53647.

It is an arithmetic number, because the mean of its divisors is an integer number (128679264).

Almost surely, 2^900139093 is an apocalyptic number.

It is an amenable number.

900139093 is a deficient number, since it is larger than the sum of its proper divisors (129295019).

900139093 is a wasteful number, since it uses less digits than its factorization.

900139093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87971.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 900139093 is about 30002.3181271048. The cubic root of 900139093 is about 965.5391201232.

The spelling of 900139093 in words is "nine hundred million, one hundred thirty-nine thousand, ninety-three".