7437172145 has 8 divisors (see below), whose sum is σ = 9611114856. Its totient is φ = 5492065536.

The previous prime is 7437172129. The next prime is 7437172181. The reversal of 7437172145 is 5412717347.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 885241009 + 6551931136 = 29753^2 + 80944^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7437172145 - 2⁴ = 7437172129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 57208952 + ... + 57209081.

It is an arithmetic number, because the mean of its divisors is an integer number (1201389357).

Almost surely, 2^7437172145 is an apocalyptic number.

It is an amenable number.

7437172145 is a deficient number, since it is larger than the sum of its proper divisors (2173942711).

7437172145 is a wasteful number, since it uses less digits than its factorization.

7437172145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114418051.

The product of its digits is 164640, while the sum is 41.

The square root of 7437172145 is about 86239.0407240248. The cubic root of 7437172145 is about 1951.9526480363.

The spelling of 7437172145 in words is "seven billion, four hundred thirty-seven million, one hundred seventy-two thousand, one hundred forty-five".