46640161 has 4 divisors (see below), whose sum is σ = 46656324. Its totient is φ = 46624000.

The previous prime is 46640141. The next prime is 46640171. The reversal of 46640161 is 16104664.

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 19140625 + 27499536 = 4375^2 + 5244^2 .

It is a cyclic number.

It is not a de Polignac number, because 46640161 - 2¹¹ = 46638113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46640131) 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, 2440 + ... + 9961.

It is an arithmetic number, because the mean of its divisors is an integer number (11664081).

Almost surely, 2^46640161 is an apocalyptic number.

It is an amenable number.

46640161 is a deficient number, since it is larger than the sum of its proper divisors (16163).

46640161 is a wasteful number, since it uses less digits than its factorization.

46640161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16162.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 46640161 is about 6829.3602189371. The cubic root of 46640161 is about 359.9592572204.

The spelling of 46640161 in words is "forty-six million, six hundred forty thousand, one hundred sixty-one".