7123182961 has 4 divisors (see below), whose sum is σ = 7432886592. Its totient is φ = 6813479332.

The previous prime is 7123182959. The next prime is 7123183003. The reversal of 7123182961 is 1692813217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1692813217 = 2063 ⋅820559.

It is a cyclic number.

It is not a de Polignac number, because 7123182961 - 2¹ = 7123182959 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7123182161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154851781 + ... + 154851826.

It is an arithmetic number, because the mean of its divisors is an integer number (1858221648).

Almost surely, 2^7123182961 is an apocalyptic number.

It is an amenable number.

7123182961 is a deficient number, since it is larger than the sum of its proper divisors (309703631).

7123182961 is a wasteful number, since it uses less digits than its factorization.

7123182961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309703630.

The product of its digits is 36288, while the sum is 40.

The square root of 7123182961 is about 84398.9511842416. The cubic root of 7123182961 is about 1924.0869756693.

The spelling of 7123182961 in words is "seven billion, one hundred twenty-three million, one hundred eighty-two thousand, nine hundred sixty-one".