46145891 has 6 divisors (see below), whose sum is σ = 50722476. Its totient is φ = 41950700.

The previous prime is 46145867. The next prime is 46145909. The reversal of 46145891 is 19854164.

It is not a de Polignac number, because 46145891 - 2¹⁰ = 46144867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46145861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190565 + ... + 190806.

It is an arithmetic number, because the mean of its divisors is an integer number (8453746).

Almost surely, 2^46145891 is an apocalyptic number.

46145891 is a deficient number, since it is larger than the sum of its proper divisors (4576585).

46145891 is a wasteful number, since it uses less digits than its factorization.

46145891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381393 (or 381382 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 46145891 is about 6793.0766961665. The cubic root of 46145891 is about 358.6831804230.

The spelling of 46145891 in words is "forty-six million, one hundred forty-five thousand, eight hundred ninety-one".