7145515885 has 8 divisors (see below), whose sum is σ = 8617708800. Its totient is φ = 5687686224.

The previous prime is 7145515849. The next prime is 7145515889. The reversal of 7145515885 is 5885155417.

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 7145515885 - 2⁹ = 7145515373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145515889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3589717 + ... + 3591706.

It is an arithmetic number, because the mean of its divisors is an integer number (1077213600).

Almost surely, 2^7145515885 is an apocalyptic number.

It is an amenable number.

7145515885 is a deficient number, since it is larger than the sum of its proper divisors (1472192915).

7145515885 is a wasteful number, since it uses less digits than its factorization.

7145515885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181627.

The product of its digits is 1120000, while the sum is 49.

The square root of 7145515885 is about 84531.1533400556. The cubic root of 7145515885 is about 1926.0957058872.

The spelling of 7145515885 in words is "seven billion, one hundred forty-five million, five hundred fifteen thousand, eight hundred eighty-five".