6411530149 has 4 divisors (see below), whose sum is σ = 6411770764. Its totient is φ = 6411289536.

The previous prime is 6411530137. The next prime is 6411530171. The reversal of 6411530149 is 9410351146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1255284900 + 5156245249 = 35430^2 + 71807^2 .

It is a cyclic number.

It is not a de Polignac number, because 6411530149 - 2¹⁷ = 6411399077 is a prime.

It is a super-2 number, since 2×6411530149² = 82215437703071924402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6411530119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74532 + ... + 135565.

It is an arithmetic number, because the mean of its divisors is an integer number (1602942691).

Almost surely, 2^6411530149 is an apocalyptic number.

It is an amenable number.

6411530149 is a deficient number, since it is larger than the sum of its proper divisors (240615).

6411530149 is a wasteful number, since it uses less digits than its factorization.

6411530149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240614.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 6411530149 is about 80072.0310033410. The cubic root of 6411530149 is about 1857.7498272735.

The spelling of 6411530149 in words is "six billion, four hundred eleven million, five hundred thirty thousand, one hundred forty-nine".