906161 has 4 divisors (see below), whose sum is σ = 935424. Its totient is φ = 876900.

The previous prime is 906133. The next prime is 906179. The reversal of 906161 is 161609.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161609 = 7 ⋅23087.

It is a cyclic number.

It is not a de Polignac number, because 906161 - 2¹⁰ = 905137 is a prime.

It is a super-2 number, since 2×906161² = 1642255515842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14585 + ... + 14646.

It is an arithmetic number, because the mean of its divisors is an integer number (233856).

2⁹⁰⁶¹⁶¹ is an apocalyptic number.

It is an amenable number.

906161 is a deficient number, since it is larger than the sum of its proper divisors (29263).

906161 is a wasteful number, since it uses less digits than its factorization.

906161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29262.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 906161 is about 951.9248919952. The cubic root of 906161 is about 96.7687480221.

The spelling of 906161 in words is "nine hundred six thousand, one hundred sixty-one".