72162371 has 2 divisors, whose sum is σ = 72162372. Its totient is φ = 72162370.

The previous prime is 72162359. The next prime is 72162383. The reversal of 72162371 is 17326127.

It is a balanced prime because it is at equal distance from previous prime (72162359) and next prime (72162383).

It is a cyclic number.

It is not a de Polignac number, because 72162371 - 2²⁶ = 5053507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72162301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36081185 + 36081186.

It is an arithmetic number, because the mean of its divisors is an integer number (36081186).

Almost surely, 2^72162371 is an apocalyptic number.

72162371 is a deficient number, since it is larger than the sum of its proper divisors (1).

72162371 is an equidigital number, since it uses as much as digits as its factorization.

72162371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 29.

The square root of 72162371 is about 8494.8437890287. The cubic root of 72162371 is about 416.3292569428.

Adding to 72162371 its reverse (17326127), we get a palindrome (89488498).

The spelling of 72162371 in words is "seventy-two million, one hundred sixty-two thousand, three hundred seventy-one".