72150667 has 2 divisors, whose sum is σ = 72150668. Its totient is φ = 72150666.

The previous prime is 72150653. The next prime is 72150691. The reversal of 72150667 is 76605127.

It is a weak prime.

It is an emirp because it is prime and its reverse (76605127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72150667 - 2²³ = 63762059 is a prime.

It is not a weakly prime, because it can be changed into another prime (72150607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36075333 + 36075334.

It is an arithmetic number, because the mean of its divisors is an integer number (36075334).

Almost surely, 2^72150667 is an apocalyptic number.

72150667 is a deficient number, since it is larger than the sum of its proper divisors (1).

72150667 is an equidigital number, since it uses as much as digits as its factorization.

72150667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 72150667 is about 8494.1548726168. The cubic root of 72150667 is about 416.3067476071.

The spelling of 72150667 in words is "seventy-two million, one hundred fifty thousand, six hundred sixty-seven".