7173236145 has 16 divisors (see below), whose sum is σ = 11638829952. Its totient is φ = 3771841920.

The previous prime is 7173236143. The next prime is 7173236149. The reversal of 7173236145 is 5416323717.

It is not a de Polignac number, because 7173236145 - 2¹ = 7173236143 is a prime.

It is a super-2 number, since 2×7173236145² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7173236143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3366652 + ... + 3368781.

It is an arithmetic number, because the mean of its divisors is an integer number (727426872).

Almost surely, 2^7173236145 is an apocalyptic number.

It is an amenable number.

7173236145 is a deficient number, since it is larger than the sum of its proper divisors (4465593807).

7173236145 is a wasteful number, since it uses less digits than its factorization.

7173236145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735512.

The product of its digits is 105840, while the sum is 39.

The square root of 7173236145 is about 84694.9593836611. The cubic root of 7173236145 is about 1928.5831856975.

The spelling of 7173236145 in words is "seven billion, one hundred seventy-three million, two hundred thirty-six thousand, one hundred forty-five".