3247145965 has 48 divisors (see below), whose sum is σ = 4661249328. Its totient is φ = 2164291584.

The previous prime is 3247145963. The next prime is 3247145969. The reversal of 3247145965 is 5695417423.

It is a happy number.

3247145965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 14768649 + 3232377316 = 3843^2 + 56854^2 .

It is not a de Polignac number, because 3247145965 - 2¹ = 3247145963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3247145963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1466199 + ... + 1468411.

It is an arithmetic number, because the mean of its divisors is an integer number (97109361).

Almost surely, 2^3247145965 is an apocalyptic number.

3247145965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3247145965 is a deficient number, since it is larger than the sum of its proper divisors (1414103363).

3247145965 is a wasteful number, since it uses less digits than its factorization.

3247145965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2391 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The square root of 3247145965 is about 56983.7342142475. The cubic root of 3247145965 is about 1480.8143140162.

The spelling of 3247145965 in words is "three billion, two hundred forty-seven million, one hundred forty-five thousand, nine hundred sixty-five".