3545421261 has 16 divisors (see below), whose sum is σ = 5008995840. Its totient is φ = 2224378800.

The previous prime is 3545421239. The next prime is 3545421287. The reversal of 3545421261 is 1621245453.

It is not a de Polignac number, because 3545421261 - 2⁶ = 3545421197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545421211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197355 + ... + 214568.

It is an arithmetic number, because the mean of its divisors is an integer number (313062240).

Almost surely, 2^3545421261 is an apocalyptic number.

It is an amenable number.

3545421261 is a deficient number, since it is larger than the sum of its proper divisors (1463574579).

3545421261 is a wasteful number, since it uses less digits than its factorization.

3545421261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412096.

The product of its digits is 28800, while the sum is 33.

The square root of 3545421261 is about 59543.4401172791. The cubic root of 3545421261 is about 1524.8341679034.

The spelling of 3545421261 in words is "three billion, five hundred forty-five million, four hundred twenty-one thousand, two hundred sixty-one".