3541530121 has 4 divisors (see below), whose sum is σ = 3559880212. Its totient is φ = 3523180032.

The previous prime is 3541530107. The next prime is 3541530149. The reversal of 3541530121 is 1210351453.

It is a happy number.

3541530121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 564300025 + 2977230096 = 23755^2 + 54564^2 .

It is a cyclic number.

It is not a de Polignac number, because 3541530121 - 2⁹ = 3541529609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3541530101) 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, 9174756 + ... + 9175141.

It is an arithmetic number, because the mean of its divisors is an integer number (889970053).

Almost surely, 2^3541530121 is an apocalyptic number.

It is an amenable number.

3541530121 is a deficient number, since it is larger than the sum of its proper divisors (18350091).

3541530121 is a wasteful number, since it uses less digits than its factorization.

3541530121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18350090.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 3541530121 is about 59510.7563470672. The cubic root of 3541530121 is about 1524.2761227752.

Adding to 3541530121 its reverse (1210351453), we get a palindrome (4751881574).

It can be divided in two parts, 35415 and 30121, that added together give a 16-th power (65536 = 2¹⁶).

The spelling of 3541530121 in words is "three billion, five hundred forty-one million, five hundred thirty thousand, one hundred twenty-one".