7447445131 has 8 divisors (see below), whose sum is σ = 8514573824. Its totient is φ = 6381118440.

The previous prime is 7447445111. The next prime is 7447445171. The reversal of 7447445131 is 1315447447.

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 7447445131 - 2¹⁵ = 7447412363 is a prime.

It is a super-2 number, since 2×7447445131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7447445101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180465 + ... + 217858.

It is an arithmetic number, because the mean of its divisors is an integer number (1064321728).

Almost surely, 2^7447445131 is an apocalyptic number.

7447445131 is a deficient number, since it is larger than the sum of its proper divisors (1067128693).

7447445131 is a wasteful number, since it uses less digits than its factorization.

7447445131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401001.

The product of its digits is 188160, while the sum is 40.

The square root of 7447445131 is about 86298.5812803432. The cubic root of 7447445131 is about 1952.8509803643.

The spelling of 7447445131 in words is "seven billion, four hundred forty-seven million, four hundred forty-five thousand, one hundred thirty-one".