321161401 has 8 divisors (see below), whose sum is σ = 356102208. Its totient is φ = 287178000.

The previous prime is 321161371. The next prime is 321161411. The reversal of 321161401 is 104161123.

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

It is a cyclic number.

It is not a de Polignac number, because 321161401 - 2⁷ = 321161273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321161411) 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, 238645 + ... + 239986.

It is an arithmetic number, because the mean of its divisors is an integer number (44512776).

Almost surely, 2^321161401 is an apocalyptic number.

It is an amenable number.

321161401 is a deficient number, since it is larger than the sum of its proper divisors (34940807).

321161401 is a wasteful number, since it uses less digits than its factorization.

321161401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478703.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 321161401 is about 17920.9765637925. The cubic root of 321161401 is about 684.8168661698.

The spelling of 321161401 in words is "three hundred twenty-one million, one hundred sixty-one thousand, four hundred one".