102072002 has 4 divisors (see below), whose sum is σ = 153108006. Its totient is φ = 51036000.

The previous prime is 102071993. The next prime is 102072013. The reversal of 102072002 is 200270201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200270201 = 29 ⋅6905869.

It can be written as a sum of positive squares in only one way, i.e., 101384761 + 687241 = 10069^2 + 829^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25517999 + ... + 25518002.

Almost surely, 2^102072002 is an apocalyptic number.

102072002 is a deficient number, since it is larger than the sum of its proper divisors (51036004).

102072002 is an equidigital number, since it uses as much as digits as its factorization.

102072002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51036003.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 102072002 is about 10103.0689396836. The cubic root of 102072002 is about 467.3427871770.

The spelling of 102072002 in words is "one hundred two million, seventy-two thousand, two".