321400054 has 4 divisors (see below), whose sum is σ = 482100084. Its totient is φ = 160700026.

The previous prime is 321400021. The next prime is 321400097. The reversal of 321400054 is 450004123.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×321400054² = 206595989422405832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80350012 + ... + 80350015.

It is an arithmetic number, because the mean of its divisors is an integer number (120525021).

Almost surely, 2^321400054 is an apocalyptic number.

321400054 is a deficient number, since it is larger than the sum of its proper divisors (160700030).

321400054 is a wasteful number, since it uses less digits than its factorization.

321400054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160700029.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 321400054 is about 17927.6338092901. The cubic root of 321400054 is about 684.9864518606.

Adding to 321400054 its reverse (450004123), we get a palindrome (771404177).

The spelling of 321400054 in words is "three hundred twenty-one million, four hundred thousand, fifty-four".