920146 has 4 divisors (see below), whose sum is σ = 1380222. Its totient is φ = 460072.

The previous prime is 920137. The next prime is 920147. The reversal of 920146 is 641029.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641029 = 109 ⋅5881.

It can be written as a sum of positive squares in only one way, i.e., 703921 + 216225 = 839^2 + 465^2 .

It is a super-2 number, since 2×920146² = 1693337322632, which contains 22 as substring.

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 (920147) by changing a digit.

920146 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230035 + ... + 230038.

2⁹²⁰¹⁴⁶ is an apocalyptic number.

920146 is a deficient number, since it is larger than the sum of its proper divisors (460076).

920146 is a wasteful number, since it uses less digits than its factorization.

920146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460075.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 920146 is about 959.2424094044. The cubic root of 920146 is about 97.2640272037.

The spelling of 920146 in words is "nine hundred twenty thousand, one hundred forty-six".