4651538231 has 2 divisors, whose sum is σ = 4651538232. Its totient is φ = 4651538230.

The previous prime is 4651538183. The next prime is 4651538263. The reversal of 4651538231 is 1328351564.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4651538231 - 2²² = 4647343927 is a prime.

It is a super-3 number, since 3×4651538231³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4651538531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2325769115 + 2325769116.

It is an arithmetic number, because the mean of its divisors is an integer number (2325769116).

Almost surely, 2^4651538231 is an apocalyptic number.

4651538231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4651538231 is an equidigital number, since it uses as much as digits as its factorization.

4651538231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The square root of 4651538231 is about 68202.1864092347. The cubic root of 4651538231 is about 1669.2915626136.

Adding to 4651538231 its reverse (1328351564), we get a palindrome (5979889795).

The spelling of 4651538231 in words is "four billion, six hundred fifty-one million, five hundred thirty-eight thousand, two hundred thirty-one".