7145151841 has 9 divisors (see below), whose sum is σ = 7209371449. Its totient is φ = 7081501504.

The previous prime is 7145151821. The next prime is 7145151943. The reversal of 7145151841 is 1481515417.

The square root of 7145151841 is 84529.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1804465441 + 5340686400 = 42479^2 + 73080^2 .

It is not a de Polignac number, because 7145151841 - 2⁵ = 7145151809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7145151841.

It is not an unprimeable number, because it can be changed into a prime (7145151821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11580165 + ... + 11580781.

Almost surely, 2^7145151841 is an apocalyptic number.

7145151841 is the 84529-th square number.

7145151841 is the 42265-th centered octagonal number.

It is an amenable number.

7145151841 is a deficient number, since it is larger than the sum of its proper divisors (64219608).

7145151841 is an frugal number, since it uses more digits than its factorization.

7145151841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 754 counting only the distinct ones).

The product of its digits is 22400, while the sum is 37.

The cubic root of 7145151841 is about 1926.0629956064.

The spelling of 7145151841 in words is "seven billion, one hundred forty-five million, one hundred fifty-one thousand, eight hundred forty-one".