3145646141 has 4 divisors (see below), whose sum is σ = 3431613984. Its totient is φ = 2859678300.

The previous prime is 3145646117. The next prime is 3145646143. The reversal of 3145646141 is 1416465413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3145646141 - 2²² = 3141451837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145646143) 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 3 ways as a sum of consecutive naturals, for example, 142983905 + ... + 142983926.

It is an arithmetic number, because the mean of its divisors is an integer number (857903496).

Almost surely, 2^3145646141 is an apocalyptic number.

It is an amenable number.

3145646141 is a deficient number, since it is larger than the sum of its proper divisors (285967843).

3145646141 is a wasteful number, since it uses less digits than its factorization.

3145646141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285967842.

The product of its digits is 34560, while the sum is 35.

The square root of 3145646141 is about 56086.0601308382. The cubic root of 3145646141 is about 1465.2215207818.

The spelling of 3145646141 in words is "three billion, one hundred forty-five million, six hundred forty-six thousand, one hundred forty-one".