72155627 has 2 divisors, whose sum is σ = 72155628. Its totient is φ = 72155626.

The previous prime is 72155621. The next prime is 72155651. The reversal of 72155627 is 72655127.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72155627 - 2¹⁰ = 72154603 is a prime.

It is not a weakly prime, because it can be changed into another prime (72155621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36077813 + 36077814.

It is an arithmetic number, because the mean of its divisors is an integer number (36077814).

Almost surely, 2^72155627 is an apocalyptic number.

72155627 is a deficient number, since it is larger than the sum of its proper divisors (1).

72155627 is an equidigital number, since it uses as much as digits as its factorization.

72155627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 35.

The square root of 72155627 is about 8494.4468330787. The cubic root of 72155627 is about 416.3162870623.

Subtracting 72155627 from its reverse (72655127), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 72155627 in words is "seventy-two million, one hundred fifty-five thousand, six hundred twenty-seven".