102072079 has 2 divisors, whose sum is σ = 102072080. Its totient is φ = 102072078.

The previous prime is 102072071. The next prime is 102072107. The reversal of 102072079 is 970270201.

It is a happy number.

It is an a-pointer prime, because the next prime (102072107) can be obtained adding 102072079 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102072079 - 2³ = 102072071 is a prime.

It is a super-2 number, since 2×102072079² = 20837418622764482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102072071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51036039 + 51036040.

It is an arithmetic number, because the mean of its divisors is an integer number (51036040).

Almost surely, 2^102072079 is an apocalyptic number.

102072079 is a deficient number, since it is larger than the sum of its proper divisors (1).

102072079 is an equidigital number, since it uses as much as digits as its factorization.

102072079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 102072079 is about 10103.0727504062. The cubic root of 102072079 is about 467.3429046934.

The spelling of 102072079 in words is "one hundred two million, seventy-two thousand, seventy-nine".