3231311545 has 16 divisors (see below), whose sum is σ = 4834378368. Its totient is φ = 2014323840.

The previous prime is 3231311543. The next prime is 3231311563. The reversal of 3231311545 is 5451131323.

It is a happy number.

3231311545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3231311545 - 2¹ = 3231311543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3231311543) 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, 4196124 + ... + 4196893.

It is an arithmetic number, because the mean of its divisors is an integer number (302148648).

Almost surely, 2^3231311545 is an apocalyptic number.

3231311545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3231311545 is a deficient number, since it is larger than the sum of its proper divisors (1603066823).

3231311545 is a wasteful number, since it uses less digits than its factorization.

3231311545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8393040.

The product of its digits is 5400, while the sum is 28.

The square root of 3231311545 is about 56844.6263511337. The cubic root of 3231311545 is about 1478.4033708474.

Adding to 3231311545 its reverse (5451131323), we get a palindrome (8682442868).

The spelling of 3231311545 in words is "three billion, two hundred thirty-one million, three hundred eleven thousand, five hundred forty-five".