901901 has 32 divisors (see below), whose sum is σ = 1306368. Its totient is φ = 599040.

The previous prime is 901891. The next prime is 901907. The reversal of 901901 is 109109.

901901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 901901 - 2¹⁴ = 885517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16991 + ... + 17043.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2⁹⁰¹⁹⁰¹ is an apocalyptic number.

901901 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

901901 is a deficient number, since it is larger than the sum of its proper divisors (404467).

901901 is a wasteful number, since it uses less digits than its factorization.

901901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 901901 is about 949.6846845138. The cubic root of 901901 is about 96.6168682598.

It can be divided in two parts, 90 and 1901, that added together give a palindrome (1991).

The spelling of 901901 in words is "nine hundred one thousand, nine hundred one".