3145235205 has 32 divisors (see below), whose sum is σ = 6053990400. Its totient is φ = 1362146112.

The previous prime is 3145235201. The next prime is 3145235207. The reversal of 3145235205 is 5025325413.

It is not a de Polignac number, because 3145235205 - 2² = 3145235201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145235201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 786285 + ... + 790274.

It is an arithmetic number, because the mean of its divisors is an integer number (189187200).

Almost surely, 2^3145235205 is an apocalyptic number.

3145235205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3145235205 is a deficient number, since it is larger than the sum of its proper divisors (2908755195).

3145235205 is a wasteful number, since it uses less digits than its factorization.

3145235205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576593.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 3145235205 is about 56082.3965696902. The cubic root of 3145235205 is about 1465.1577142309.

The spelling of 3145235205 in words is "three billion, one hundred forty-five million, two hundred thirty-five thousand, two hundred five".