3231651145 has 16 divisors (see below), whose sum is σ = 3964866048. Its totient is φ = 2527519680.

The previous prime is 3231651139. The next prime is 3231651149. The reversal of 3231651145 is 5411561323.

It is not a de Polignac number, because 3231651145 - 2¹¹ = 3231649097 is a prime.

It is a super-2 number, since 2×3231651145² = 20887138245959622050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3231651149) 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, 220135 + ... + 234355.

It is an arithmetic number, because the mean of its divisors is an integer number (247804128).

Almost surely, 2^3231651145 is an apocalyptic number.

It is an amenable number.

3231651145 is a deficient number, since it is larger than the sum of its proper divisors (733214903).

3231651145 is a wasteful number, since it uses less digits than its factorization.

3231651145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15240.

The product of its digits is 10800, while the sum is 31.

The square root of 3231651145 is about 56847.6133623919. The cubic root of 3231651145 is about 1478.4551607776.

The spelling of 3231651145 in words is "three billion, two hundred thirty-one million, six hundred fifty-one thousand, one hundred forty-five".