3145642313 has 8 divisors (see below), whose sum is σ = 3440004960. Its totient is φ = 2852678880.

The previous prime is 3145642309. The next prime is 3145642319. The reversal of 3145642313 is 3132465413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3145642313 - 2² = 3145642309 is a prime.

It is a super-2 number, since 2×3145642313² = 19790131122671979938, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3145642313.

It is not an unprimeable number, because it can be changed into a prime (3145642319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345095 + ... + 354092.

It is an arithmetic number, because the mean of its divisors is an integer number (430000620).

Almost surely, 2^3145642313 is an apocalyptic number.

It is an amenable number.

3145642313 is a deficient number, since it is larger than the sum of its proper divisors (294362647).

3145642313 is a wasteful number, since it uses less digits than its factorization.

3145642313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699607.

The product of its digits is 25920, while the sum is 32.

The square root of 3145642313 is about 56086.0260047010. The cubic root of 3145642313 is about 1465.2209264291.

Subtracting from 3145642313 its reverse (3132465413), we obtain a square (13176900 = 3630²).

The spelling of 3145642313 in words is "three billion, one hundred forty-five million, six hundred forty-two thousand, three hundred thirteen".