322648139 has 16 divisors (see below), whose sum is σ = 371184000. Its totient is φ = 277369920.

The previous prime is 322648133. The next prime is 322648223. The reversal of 322648139 is 931846223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-322648139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (322648133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153407 + ... + 155495.

It is an arithmetic number, because the mean of its divisors is an integer number (23199000).

Almost surely, 2^322648139 is an apocalyptic number.

322648139 is a deficient number, since it is larger than the sum of its proper divisors (48535861).

322648139 is a wasteful number, since it uses less digits than its factorization.

322648139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858.

The product of its digits is 62208, while the sum is 38.

The square root of 322648139 is about 17962.4090533536. The cubic root of 322648139 is about 685.8719703441.

The spelling of 322648139 in words is "three hundred twenty-two million, six hundred forty-eight thousand, one hundred thirty-nine".