46540561 has 4 divisors (see below), whose sum is σ = 47798452. Its totient is φ = 45282672.

The previous prime is 46540553. The next prime is 46540567. The reversal of 46540561 is 16504564.

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 17380561 + 29160000 = 4169^2 + 5400^2 .

It is not a de Polignac number, because 46540561 - 2³ = 46540553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46540567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628890 + ... + 628963.

It is an arithmetic number, because the mean of its divisors is an integer number (11949613).

Almost surely, 2^46540561 is an apocalyptic number.

It is an amenable number.

46540561 is a deficient number, since it is larger than the sum of its proper divisors (1257891).

46540561 is a wasteful number, since it uses less digits than its factorization.

46540561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257890.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 46540561 is about 6822.0642770352. The cubic root of 46540561 is about 359.7028437764.

The spelling of 46540561 in words is "forty-six million, five hundred forty thousand, five hundred sixty-one".