901131 has 32 divisors (see below), whose sum is σ = 1548288. Its totient is φ = 452640.

The previous prime is 901111. The next prime is 901133. The reversal of 901131 is 131109.

It is not a de Polignac number, because 901131 - 2⁶ = 901067 is a prime.

It is a super-2 number, since 2×901131² = 1624074158322, which contains 22 as substring.

901131 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 901131.

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 31 ways as a sum of consecutive naturals, for example, 10816 + ... + 10898.

It is an arithmetic number, because the mean of its divisors is an integer number (48384).

2⁹⁰¹¹³¹ is an apocalyptic number.

901131 is a deficient number, since it is larger than the sum of its proper divisors (647157).

901131 is a wasteful number, since it uses less digits than its factorization.

901131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 901131 is about 949.2792002356. The cubic root of 901131 is about 96.5893648087.

It can be divided in two parts, 90 and 1131, that added together give a palindrome (1221).

The spelling of 901131 in words is "nine hundred one thousand, one hundred thirty-one".