3162561261 has 8 divisors (see below), whose sum is σ = 4274512320. Its totient is φ = 2079492192.

The previous prime is 3162561257. The next prime is 3162561271. The reversal of 3162561261 is 1621652613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3162561261 - 2² = 3162561257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3162561271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7220241 + ... + 7220678.

It is an arithmetic number, because the mean of its divisors is an integer number (534314040).

Almost surely, 2^3162561261 is an apocalyptic number.

It is an amenable number.

3162561261 is a deficient number, since it is larger than the sum of its proper divisors (1111951059).

3162561261 is a wasteful number, since it uses less digits than its factorization.

3162561261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440995.

The product of its digits is 12960, while the sum is 33.

The square root of 3162561261 is about 56236.6540700992. The cubic root of 3162561261 is about 1467.8431449255.

The spelling of 3162561261 in words is "three billion, one hundred sixty-two million, five hundred sixty-one thousand, two hundred sixty-one".