7113404281 has 27 divisors (see below), whose sum is σ = 7888977999. Its totient is φ = 6412614912.

The previous prime is 7113404273. The next prime is 7113404317. The reversal of 7113404281 is 1824043117.

The square root of 7113404281 is 84341.

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

It can be written as a sum of positive squares in only one way, i.e., 1723495225 + 5389909056 = 41515^2 + 73416^2 .

It is not a de Polignac number, because 7113404281 - 2³ = 7113404273 is a prime.

It is a super-2 number, since 2×7113404281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7113404681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 36856921 + ... + 36857113.

Almost surely, 2^7113404281 is an apocalyptic number.

7113404281 is the 84341-st square number.

7113404281 is the 42171-st centered octagonal number.

It is an amenable number.

7113404281 is a deficient number, since it is larger than the sum of its proper divisors (775573718).

7113404281 is an equidigital number, since it uses as much as digits as its factorization.

7113404281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The cubic root of 7113404281 is about 1923.2061125665.

Adding to 7113404281 its reverse (1824043117), we get a palindrome (8937447398).

The spelling of 7113404281 in words is "seven billion, one hundred thirteen million, four hundred four thousand, two hundred eighty-one".