3516549121 has 4 divisors (see below), whose sum is σ = 3517973572. Its totient is φ = 3515124672.

The previous prime is 3516549107. The next prime is 3516549133. The reversal of 3516549121 is 1219456153.

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 2756775025 + 759774096 = 52505^2 + 27564^2 .

It is a cyclic number.

It is not a de Polignac number, because 3516549121 - 2²⁵ = 3482994689 is a prime.

It is a super-2 number, since 2×3516549121² = 24732235440811745282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3516549151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708516 + ... + 713461.

It is an arithmetic number, because the mean of its divisors is an integer number (879493393).

Almost surely, 2^3516549121 is an apocalyptic number.

It is an amenable number.

3516549121 is a deficient number, since it is larger than the sum of its proper divisors (1424451).

3516549121 is a wasteful number, since it uses less digits than its factorization.

3516549121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424450.

The product of its digits is 32400, while the sum is 37.

The square root of 3516549121 is about 59300.4984886299. The cubic root of 3516549121 is about 1520.6837184057.

The spelling of 3516549121 in words is "three billion, five hundred sixteen million, five hundred forty-nine thousand, one hundred twenty-one".