3145921572 has 48 divisors (see below), whose sum is σ = 7409303552. Its totient is φ = 1038834720.

The previous prime is 3145921567. The next prime is 3145921573. The reversal of 3145921572 is 2751295413.

It is a self number, because there is not a number n which added to its sum of digits gives 3145921572.

It is not an unprimeable number, because it can be changed into a prime (3145921573) 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, 1509243 + ... + 1511325.

Almost surely, 2^3145921572 is an apocalyptic number.

It is an amenable number.

3145921572 is an abundant number, since it is smaller than the sum of its proper divisors (4263381980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3145921572 is a wasteful number, since it uses less digits than its factorization.

3145921572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208 (or 3206 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 3145921572 is about 56088.5155089703. The cubic root of 3145921572 is about 1465.2642841901.

The spelling of 3145921572 in words is "three billion, one hundred forty-five million, nine hundred twenty-one thousand, five hundred seventy-two".