3261006461 has 4 divisors (see below), whose sum is σ = 3432638400. Its totient is φ = 3089374524.

The previous prime is 3261006443. The next prime is 3261006481. The reversal of 3261006461 is 1646001623.

It is a happy number.

3261006461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3261006461 - 2¹⁰ = 3261005437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261006421) 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, 85815941 + ... + 85815978.

It is an arithmetic number, because the mean of its divisors is an integer number (858159600).

Almost surely, 2^3261006461 is an apocalyptic number.

It is an amenable number.

3261006461 is a deficient number, since it is larger than the sum of its proper divisors (171631939).

3261006461 is a wasteful number, since it uses less digits than its factorization.

3261006461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171631938.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 3261006461 is about 57105.2227121128. Note that the first 3 decimals coincide. The cubic root of 3261006461 is about 1482.9182833318.

The spelling of 3261006461 in words is "three billion, two hundred sixty-one million, six thousand, four hundred sixty-one".