3121413 has 8 divisors (see below), whose sum is σ = 4258848. Its totient is φ = 2032464.

The previous prime is 3121409. The next prime is 3121423. The reversal of 3121413 is 3141213.

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

It is not a de Polignac number, because 3121413 - 2² = 3121409 is a prime.

3121413 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3121392 and 3121401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11970 + ... + 12227.

It is an arithmetic number, because the mean of its divisors is an integer number (532356).

Almost surely, 2^3121413 is an apocalyptic number.

It is an amenable number.

3121413 is a deficient number, since it is larger than the sum of its proper divisors (1137435).

3121413 is a wasteful number, since it uses less digits than its factorization.

3121413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24243.

The product of its digits is 72, while the sum is 15.

The square root of 3121413 is about 1766.7521048523. The cubic root of 3121413 is about 146.1449270855.

Adding to 3121413 its reverse (3141213), we get a palindrome (6262626).

The spelling of 3121413 in words is "three million, one hundred twenty-one thousand, four hundred thirteen".