46142081 has 4 divisors (see below), whose sum is σ = 46550532. Its totient is φ = 45733632.

The previous prime is 46142077. The next prime is 46142087. The reversal of 46142081 is 18024164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25847056 + 20295025 = 5084^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 46142081 - 2² = 46142077 is a prime.

It is a super-2 number, since 2×46142081² = 4258183278021122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 46142081.

It is not an unprimeable number, because it can be changed into a prime (46142087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204056 + ... + 204281.

It is an arithmetic number, because the mean of its divisors is an integer number (11637633).

Almost surely, 2^46142081 is an apocalyptic number.

It is an amenable number.

46142081 is a deficient number, since it is larger than the sum of its proper divisors (408451).

46142081 is a wasteful number, since it uses less digits than its factorization.

46142081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408450.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 46142081 is about 6792.7962578013. The cubic root of 46142081 is about 358.6733086844.

The spelling of 46142081 in words is "forty-six million, one hundred forty-two thousand, eighty-one".