906875161 has 4 divisors (see below), whose sum is σ = 906935652. Its totient is φ = 906814672.

The previous prime is 906875107. The next prime is 906875219. The reversal of 906875161 is 161578609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 161578609 = 53 ⋅3048653.

It can be written as a sum of positive squares in 2 ways, for example, as 632774025 + 274101136 = 25155^2 + 16556^2 .

It is a cyclic number.

It is not a de Polignac number, because 906875161 - 2⁷ = 906875033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906875561) 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, 10911 + ... + 43963.

It is an arithmetic number, because the mean of its divisors is an integer number (226733913).

Almost surely, 2^906875161 is an apocalyptic number.

It is an amenable number.

906875161 is a deficient number, since it is larger than the sum of its proper divisors (60491).

906875161 is a wasteful number, since it uses less digits than its factorization.

906875161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60490.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 906875161 is about 30114.3680159488. The cubic root of 906875161 is about 967.9416304905.

The spelling of 906875161 in words is "nine hundred six million, eight hundred seventy-five thousand, one hundred sixty-one".