164321402 has 12 divisors (see below), whose sum is σ = 286724250. Its totient is φ = 70423416.

The previous prime is 164321401. The next prime is 164321411. The reversal of 164321402 is 204123461.

It can be written as a sum of positive squares in only one way, i.e., 91030681 + 73290721 = 9541^2 + 8561^2 .

It is not an unprimeable number, because it can be changed into a prime (164321401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 838277 + ... + 838472.

Almost surely, 2^164321402 is an apocalyptic number.

164321402 is a deficient number, since it is larger than the sum of its proper divisors (122402848).

164321402 is a wasteful number, since it uses less digits than its factorization.

164321402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676765 (or 1676758 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 164321402 is about 12818.7909726308. The cubic root of 164321402 is about 547.7277071772.

Adding to 164321402 its reverse (204123461), we get a palindrome (368444863).

The spelling of 164321402 in words is "one hundred sixty-four million, three hundred twenty-one thousand, four hundred two".