901139 has 8 divisors (see below), whose sum is σ = 954240. Its totient is φ = 849600.

The previous prime is 901133. The next prime is 901141. The reversal of 901139 is 931109.

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 901139 - 2¹⁶ = 835603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (901133) 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, 917 + ... + 1625.

It is an arithmetic number, because the mean of its divisors is an integer number (119280).

2⁹⁰¹¹³⁹ is an apocalyptic number.

901139 is a deficient number, since it is larger than the sum of its proper divisors (53101).

901139 is a wasteful number, since it uses less digits than its factorization.

901139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 901139 is about 949.2834139497. The cubic root of 901139 is about 96.5896506394.

The spelling of 901139 in words is "nine hundred one thousand, one hundred thirty-nine".