3152113521 has 4 divisors (see below), whose sum is σ = 4202818032. Its totient is φ = 2101409012.

The previous prime is 3152113519. The next prime is 3152113537. The reversal of 3152113521 is 1253112513.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1253112513 = 3 ⋅417704171.

It is a cyclic number.

It is not a de Polignac number, because 3152113521 - 2¹ = 3152113519 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3152113491 and 3152113500.

It is not an unprimeable number, because it can be changed into a prime (3152113561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525352251 + ... + 525352256.

It is an arithmetic number, because the mean of its divisors is an integer number (1050704508).

Almost surely, 2^3152113521 is an apocalyptic number.

It is an amenable number.

3152113521 is a deficient number, since it is larger than the sum of its proper divisors (1050704511).

3152113521 is a wasteful number, since it uses less digits than its factorization.

3152113521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050704510.

The product of its digits is 900, while the sum is 24.

The square root of 3152113521 is about 56143.6863859152. The cubic root of 3152113521 is about 1466.2249879121.

The spelling of 3152113521 in words is "three billion, one hundred fifty-two million, one hundred thirteen thousand, five hundred twenty-one".