164030402 has 4 divisors (see below), whose sum is σ = 246045606. Its totient is φ = 82015200.

The previous prime is 164030387. The next prime is 164030417. The reversal of 164030402 is 204030461.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (164030387) and next prime (164030417).

It can be written as a sum of positive squares in only one way, i.e., 162588001 + 1442401 = 12751^2 + 1201^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41007599 + ... + 41007602.

Almost surely, 2^164030402 is an apocalyptic number.

164030402 is a deficient number, since it is larger than the sum of its proper divisors (82015204).

164030402 is an equidigital number, since it uses as much as digits as its factorization.

164030402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82015203.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 164030402 is about 12807.4354185372. The cubic root of 164030402 is about 547.4041888736.

Adding to 164030402 its reverse (204030461), we get a palindrome (368060863).

The spelling of 164030402 in words is "one hundred sixty-four million, thirty thousand, four hundred two".