621314121 has 8 divisors (see below), whose sum is σ = 855142144. Its totient is φ = 400847760.

The previous prime is 621314107. The next prime is 621314137. The reversal of 621314121 is 121413126.

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

It is not a de Polignac number, because 621314121 - 2⁷ = 621313993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621314171) 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, 3340306 + ... + 3340491.

It is an arithmetic number, because the mean of its divisors is an integer number (106892768).

Almost surely, 2^621314121 is an apocalyptic number.

It is an amenable number.

621314121 is a deficient number, since it is larger than the sum of its proper divisors (233828023).

621314121 is a wasteful number, since it uses less digits than its factorization.

621314121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680831.

The product of its digits is 288, while the sum is 21.

The square root of 621314121 is about 24926.1734127002. The cubic root of 621314121 is about 853.3039212919.

Adding to 621314121 its reverse (121413126), we get a palindrome (742727247).

The spelling of 621314121 in words is "six hundred twenty-one million, three hundred fourteen thousand, one hundred twenty-one".