72130127 has 2 divisors, whose sum is σ = 72130128. Its totient is φ = 72130126.

The previous prime is 72130109. The next prime is 72130141. The reversal of 72130127 is 72103127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72130127 - 2⁶ = 72130063 is a prime.

It is a super-2 number, since 2×72130127² = 10405510442072258, 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 (72130147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36065063 + 36065064.

It is an arithmetic number, because the mean of its divisors is an integer number (36065064).

Almost surely, 2^72130127 is an apocalyptic number.

72130127 is a deficient number, since it is larger than the sum of its proper divisors (1).

72130127 is an equidigital number, since it uses as much as digits as its factorization.

72130127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 72130127 is about 8492.9457198313. The cubic root of 72130127 is about 416.2672388379.

Subtracting from 72130127 its reverse (72103127), we obtain a cube (27000 = 30³).

The spelling of 72130127 in words is "seventy-two million, one hundred thirty thousand, one hundred twenty-seven".