321425542 has 4 divisors (see below), whose sum is σ = 482138316. Its totient is φ = 160712770.

The previous prime is 321425519. The next prime is 321425543. The reversal of 321425542 is 245524123.

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

It is a self number, because there is not a number n which added to its sum of digits gives 321425542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321425543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80356384 + ... + 80356387.

It is an arithmetic number, because the mean of its divisors is an integer number (120534579).

Almost surely, 2^321425542 is an apocalyptic number.

321425542 is a deficient number, since it is larger than the sum of its proper divisors (160712774).

321425542 is a wasteful number, since it uses less digits than its factorization.

321425542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160712773.

The product of its digits is 9600, while the sum is 28.

The square root of 321425542 is about 17928.3446530905. The cubic root of 321425542 is about 685.0045585503.

Adding to 321425542 its reverse (245524123), we get a palindrome (566949665).

The spelling of 321425542 in words is "three hundred twenty-one million, four hundred twenty-five thousand, five hundred forty-two".