3125212301929 has 9 divisors (see below), whose sum is σ = 3142895849751. Its totient is φ = 3107627726760.

The previous prime is 3125212301881. The next prime is 3125212301957. The reversal of 3125212301929 is 9291032125213.

The square root of 3125212301929 is 1767827.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 34437338329 + 3090774963600 = 185573^2 + 1758060^2 .

It is not a de Polignac number, because 3125212301929 - 2¹⁹ = 3125211777641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3125212301891 and 3125212301900.

It is not an unprimeable number, because it can be changed into a prime (3125212301129) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 319971804 + ... + 319981570.

Almost surely, 2^{3125212301929} is an apocalyptic number.

3125212301929 is the 1767827-th square number.

3125212301929 is the 883914-th centered octagonal number.

It is an amenable number.

3125212301929 is a deficient number, since it is larger than the sum of its proper divisors (17683547822).

3125212301929 is an frugal number, since it uses more digits than its factorization.

3125212301929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19896 (or 9948 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 3125212301929 in words is "three trillion, one hundred twenty-five billion, two hundred twelve million, three hundred one thousand, nine hundred twenty-nine".