3545320243 has 4 divisors (see below), whose sum is σ = 3545490960. Its totient is φ = 3545149528.

The previous prime is 3545320237. The next prime is 3545320249. The reversal of 3545320243 is 3420235453.

3545320243 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 is an interprime number because it is at equal distance from previous prime (3545320237) and next prime (3545320249).

It is a cyclic number.

It is not a de Polignac number, because 3545320243 - 2⁹ = 3545319731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3545320249) 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, 49063 + ... + 97456.

It is an arithmetic number, because the mean of its divisors is an integer number (886372740).

Almost surely, 2^3545320243 is an apocalyptic number.

3545320243 is a deficient number, since it is larger than the sum of its proper divisors (170717).

3545320243 is a wasteful number, since it uses less digits than its factorization.

3545320243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170716.

The product of its (nonzero) digits is 43200, while the sum is 31.

The square root of 3545320243 is about 59542.5918397915. The cubic root of 3545320243 is about 1524.8196856412.

Adding to 3545320243 its reverse (3420235453), we get a palindrome (6965555696).

It can be divided in two parts, 35453 and 20243, that added together give a square (55696 = 236²).

The spelling of 3545320243 in words is "three billion, five hundred forty-five million, three hundred twenty thousand, two hundred forty-three".