5237272161 has 135 divisors (see below), whose sum is σ = 9352463043. Its totient is φ = 2917918080.

The previous prime is 5237272123. The next prime is 5237272171. The reversal of 5237272161 is 1612727325.

The square root of 5237272161 is 72369.

It is a perfect power (a square), and thus also a powerful number.

5237272161 is a `hidden beast` number, since 523 + 7 + 2 + 72 + 1 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4077461025 + 1159811136 = 63855^2 + 34056^2 .

It is not a de Polignac number, because 5237272161 - 2²⁹ = 4700401249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5237272111) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 121797006 + ... + 121797048.

Almost surely, 2^5237272161 is an apocalyptic number.

5237272161 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5237272161 is the 72369-th square number.

5237272161 is the 36185-th centered octagonal number.

It is an amenable number.

5237272161 is a deficient number, since it is larger than the sum of its proper divisors (4115190882).

5237272161 is a wasteful number, since it uses less digits than its factorization.

5237272161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 74 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The cubic root of 5237272161 is about 1736.6076681995.

Multiplying 5237272161 by its sum of digits (36), we get a square (188541797796 = 434214²).

Adding to 5237272161 its reverse (1612727325), we get a palindrome (6849999486).

The spelling of 5237272161 in words is "five billion, two hundred thirty-seven million, two hundred seventy-two thousand, one hundred sixty-one".