7121548634 has 4 divisors (see below), whose sum is σ = 10682322954. Its totient is φ = 3560774316.

The previous prime is 7121548583. The next prime is 7121548649. The reversal of 7121548634 is 4368451217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5498667409 + 1622881225 = 74153^2 + 40285^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7121548591 and 7121548600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780387157 + ... + 1780387160.

Almost surely, 2^7121548634 is an apocalyptic number.

7121548634 is a deficient number, since it is larger than the sum of its proper divisors (3560774320).

7121548634 is a wasteful number, since it uses less digits than its factorization.

7121548634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560774319.

The product of its digits is 161280, while the sum is 41.

The square root of 7121548634 is about 84389.2684765071. The cubic root of 7121548634 is about 1923.9398116913.

The spelling of 7121548634 in words is "seven billion, one hundred twenty-one million, five hundred forty-eight thousand, six hundred thirty-four".