4531161631 has 2 divisors, whose sum is σ = 4531161632. Its totient is φ = 4531161630.

The previous prime is 4531161601. The next prime is 4531161641. The reversal of 4531161631 is 1361611354.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4531161631 - 2²¹ = 4529064479 is a prime.

It is a super-2 number, since 2×4531161631² = 41062851452493160322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4531161593 and 4531161602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4531161601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265580815 + 2265580816.

It is an arithmetic number, because the mean of its divisors is an integer number (2265580816).

Almost surely, 2^4531161631 is an apocalyptic number.

4531161631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4531161631 is an equidigital number, since it uses as much as digits as its factorization.

4531161631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 4531161631 is about 67313.9036975275. The cubic root of 4531161631 is about 1654.7657297178.

Adding to 4531161631 its reverse (1361611354), we get a palindrome (5892772985).

It can be divided in two parts, 453 and 1161631, that added together give a square (1162084 = 1078²).

The spelling of 4531161631 in words is "four billion, five hundred thirty-one million, one hundred sixty-one thousand, six hundred thirty-one".