3120254661 has 4 divisors (see below), whose sum is σ = 4160339552. Its totient is φ = 2080169772.

The previous prime is 3120254633. The next prime is 3120254671. The reversal of 3120254661 is 1664520213.

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 not a de Polignac number, because 3120254661 - 2⁹ = 3120254149 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 (3120254671) 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, 520042441 + ... + 520042446.

It is an arithmetic number, because the mean of its divisors is an integer number (1040084888).

Almost surely, 2^3120254661 is an apocalyptic number.

It is an amenable number.

3120254661 is a deficient number, since it is larger than the sum of its proper divisors (1040084891).

3120254661 is a wasteful number, since it uses less digits than its factorization.

3120254661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040084890.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 3120254661 is about 55859.2397101858. The cubic root of 3120254661 is about 1461.2684699239.

Adding to 3120254661 its reverse (1664520213), we get a palindrome (4784774874).

The spelling of 3120254661 in words is "three billion, one hundred twenty million, two hundred fifty-four thousand, six hundred sixty-one".