3121415677 has 4 divisors (see below), whose sum is σ = 3142087456. Its totient is φ = 3100743900.

The previous prime is 3121415659. The next prime is 3121415681. The reversal of 3121415677 is 7765141213.

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: 7765141213 = 2143 ⋅3623491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121415677 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 (3121415617) 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 3 ways as a sum of consecutive naturals, for example, 10335663 + ... + 10335964.

It is an arithmetic number, because the mean of its divisors is an integer number (785521864).

Almost surely, 2^3121415677 is an apocalyptic number.

It is an amenable number.

3121415677 is a deficient number, since it is larger than the sum of its proper divisors (20671779).

3121415677 is a wasteful number, since it uses less digits than its factorization.

3121415677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20671778.

The product of its digits is 35280, while the sum is 37.

The square root of 3121415677 is about 55869.6310798631. The cubic root of 3121415677 is about 1461.4496886467.

The spelling of 3121415677 in words is "three billion, one hundred twenty-one million, four hundred fifteen thousand, six hundred seventy-seven".