621313201 has 4 divisors (see below), whose sum is σ = 627345472. Its totient is φ = 615280932.

The previous prime is 621313169. The next prime is 621313249. The reversal of 621313201 is 102313126.

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 621313201 - 2⁵ = 621313169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621314201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3015981 + ... + 3016186.

It is an arithmetic number, because the mean of its divisors is an integer number (156836368).

Almost surely, 2^621313201 is an apocalyptic number.

It is an amenable number.

621313201 is a deficient number, since it is larger than the sum of its proper divisors (6032271).

621313201 is a wasteful number, since it uses less digits than its factorization.

621313201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6032270.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 621313201 is about 24926.1549581960. The cubic root of 621313201 is about 853.3035001201.

Adding to 621313201 its reverse (102313126), we get a palindrome (723626327).

The spelling of 621313201 in words is "six hundred twenty-one million, three hundred thirteen thousand, two hundred one".