46181631 has 16 divisors (see below), whose sum is σ = 64832256. Its totient is φ = 29183616.

The previous prime is 46181627. The next prime is 46181633. The reversal of 46181631 is 13618164.

It is not a de Polignac number, because 46181631 - 2² = 46181627 is a prime.

It is a super-2 number, since 2×46181631² = 4265486083640322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46181633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4836 + ... + 10758.

It is an arithmetic number, because the mean of its divisors is an integer number (4052016).

Almost surely, 2^46181631 is an apocalyptic number.

46181631 is a deficient number, since it is larger than the sum of its proper divisors (18650625).

46181631 is a wasteful number, since it uses less digits than its factorization.

46181631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062.

The product of its digits is 3456, while the sum is 30.

The square root of 46181631 is about 6795.7068065066. The cubic root of 46181631 is about 358.7757565874.

Adding to 46181631 its reverse (13618164), we get a palindrome (59799795).

It can be divided in two parts, 4618163 and 1, that added together give a palindrome (4618164).

The spelling of 46181631 in words is "forty-six million, one hundred eighty-one thousand, six hundred thirty-one".