7131126916 has 9 divisors (see below), whose sum is σ = 12479767671. Its totient is φ = 3565479012.

The previous prime is 7131126887. The next prime is 7131126973. The reversal of 7131126916 is 6196211317.

It is a happy number.

The square root of 7131126916 is 84446.

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

It is a Duffinian number.

It is an unprimeable number.

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 in 2 ways as a sum of consecutive naturals, for example, 147781 + ... + 190003.

Almost surely, 2^7131126916 is an apocalyptic number.

7131126916 is the 84446-th square number.

It is an amenable number.

7131126916 is a deficient number, since it is larger than the sum of its proper divisors (5348640755).

7131126916 is an frugal number, since it uses more digits than its factorization.

7131126916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84450 (or 42225 counting only the distinct ones).

The product of its digits is 13608, while the sum is 37.

The cubic root of 7131126916 is about 1924.8019735352.

The spelling of 7131126916 in words is "seven billion, one hundred thirty-one million, one hundred twenty-six thousand, nine hundred sixteen".