901066 has 4 divisors (see below), whose sum is σ = 1351602. Its totient is φ = 450532.

The previous prime is 901063. The next prime is 901067. The reversal of 901066 is 660109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660109 = 131 ⋅5039.

It can be written as a sum of positive squares in only one way, i.e., 863041 + 38025 = 929^2 + 195^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (901063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225265 + ... + 225268.

2⁹⁰¹⁰⁶⁶ is an apocalyptic number.

901066 is a deficient number, since it is larger than the sum of its proper divisors (450536).

901066 is a wasteful number, since it uses less digits than its factorization.

901066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450535.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 901066 is about 949.2449631154. The cubic root of 901066 is about 96.5870423718.

It can be divided in two parts, 90 and 1066, that added together give a square (1156 = 34²).

The spelling of 901066 in words is "nine hundred one thousand, sixty-six".