3152161261 has 4 divisors (see below), whose sum is σ = 3199208512. Its totient is φ = 3105114012.

The previous prime is 3152161253. The next prime is 3152161277. The reversal of 3152161261 is 1621612513.

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 3152161261 - 2³ = 3152161253 is a prime.

It is a super-2 number, since 2×3152161261² = 19872241230698220242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3152164261) 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, 23523525 + ... + 23523658.

It is an arithmetic number, because the mean of its divisors is an integer number (799802128).

Almost surely, 2^3152161261 is an apocalyptic number.

It is an amenable number.

3152161261 is a deficient number, since it is larger than the sum of its proper divisors (47047251).

3152161261 is an equidigital number, since it uses as much as digits as its factorization.

3152161261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47047250.

The product of its digits is 2160, while the sum is 28.

The square root of 3152161261 is about 56144.1115434201. Note that the first 3 decimals coincide. The cubic root of 3152161261 is about 1466.2323900596.

Adding to 3152161261 its reverse (1621612513), we get a palindrome (4773773774).

The spelling of 3152161261 in words is "three billion, one hundred fifty-two million, one hundred sixty-one thousand, two hundred sixty-one".