3545021241 has 8 divisors (see below), whose sum is σ = 5251883360. Its totient is φ = 2363347476.

The previous prime is 3545021191. The next prime is 3545021281. The reversal of 3545021241 is 1421205453.

3545021241 is a `hidden beast` number, since 35 + 4 + 502 + 124 + 1 = 666.

It is not a de Polignac number, because 3545021241 - 2⁶ = 3545021177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 131297083 = 3545021241 / (3 + 5 + 4 + 5 + 0 + 2 + 1 + 2 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3545021281) 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, 65648515 + ... + 65648568.

It is an arithmetic number, because the mean of its divisors is an integer number (656485420).

Almost surely, 2^3545021241 is an apocalyptic number.

It is an amenable number.

3545021241 is a deficient number, since it is larger than the sum of its proper divisors (1706862119).

3545021241 is a wasteful number, since it uses less digits than its factorization.

3545021241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131297092 (or 131297086 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 3545021241 is about 59540.0809623232. The cubic root of 3545021241 is about 1524.7768181499.

Adding to 3545021241 its reverse (1421205453), we get a palindrome (4966226694).

The spelling of 3545021241 in words is "three billion, five hundred forty-five million, twenty-one thousand, two hundred forty-one".