321450601 has 4 divisors (see below), whose sum is σ = 322154452. Its totient is φ = 320746752.

The previous prime is 321450581. The next prime is 321450611. The reversal of 321450601 is 106054123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106054123 = 7 ⋅15150589.

It can be written as a sum of positive squares in 2 ways, for example, as 218448400 + 103002201 = 14780^2 + 10149^2 .

It is a cyclic number.

It is not a de Polignac number, because 321450601 - 2⁷ = 321450473 is a prime.

It is a super-2 number, since 2×321450601² = 206660977766522402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321450611) 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, 351240 + ... + 352153.

It is an arithmetic number, because the mean of its divisors is an integer number (80538613).

Almost surely, 2^321450601 is an apocalyptic number.

It is an amenable number.

321450601 is a deficient number, since it is larger than the sum of its proper divisors (703851).

321450601 is an equidigital number, since it uses as much as digits as its factorization.

321450601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703850.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 321450601 is about 17929.0435048834. The cubic root of 321450601 is about 685.0223595451.

The spelling of 321450601 in words is "three hundred twenty-one million, four hundred fifty thousand, six hundred one".