172022002 has 4 divisors (see below), whose sum is σ = 258033006. Its totient is φ = 86011000.

The previous prime is 172021999. The next prime is 172022009. The reversal of 172022002 is 200220271.

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

It can be written as a sum of positive squares in only one way, i.e., 112593321 + 59428681 = 10611^2 + 7709^2 .

It is not an unprimeable number, because it can be changed into a prime (172022009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43005499 + ... + 43005502.

Almost surely, 2^172022002 is an apocalyptic number.

172022002 is a deficient number, since it is larger than the sum of its proper divisors (86011004).

172022002 is an equidigital number, since it uses as much as digits as its factorization.

172022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86011003.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 172022002 is about 13115.7158401667. The cubic root of 172022002 is about 556.1534887561.

Adding to 172022002 its reverse (200220271), we get a palindrome (372242273).

The spelling of 172022002 in words is "one hundred seventy-two million, twenty-two thousand, two".