72240167 has 2 divisors, whose sum is σ = 72240168. Its totient is φ = 72240166.

The previous prime is 72240151. The next prime is 72240173. The reversal of 72240167 is 76104227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72240167 - 2⁴ = 72240151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72240127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36120083 + 36120084.

It is an arithmetic number, because the mean of its divisors is an integer number (36120084).

Almost surely, 2^72240167 is an apocalyptic number.

72240167 is a deficient number, since it is larger than the sum of its proper divisors (1).

72240167 is an equidigital number, since it uses as much as digits as its factorization.

72240167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 72240167 is about 8499.4215685539. The cubic root of 72240167 is about 416.4788137376.

The spelling of 72240167 in words is "seventy-two million, two hundred forty thousand, one hundred sixty-seven".