72308153 has 2 divisors, whose sum is σ = 72308154. Its totient is φ = 72308152.

The previous prime is 72308149. The next prime is 72308219. The reversal of 72308153 is 35180327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49392784 + 22915369 = 7028^2 + 4787^2 .

It is a cyclic number.

It is not a de Polignac number, because 72308153 - 2² = 72308149 is a prime.

It is not a weakly prime, because it can be changed into another prime (72305153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36154076 + 36154077.

It is an arithmetic number, because the mean of its divisors is an integer number (36154077).

Almost surely, 2^72308153 is an apocalyptic number.

It is an amenable number.

72308153 is a deficient number, since it is larger than the sum of its proper divisors (1).

72308153 is an equidigital number, since it uses as much as digits as its factorization.

72308153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 72308153 is about 8503.4200766515. The cubic root of 72308153 is about 416.6094236739.

The spelling of 72308153 in words is "seventy-two million, three hundred eight thousand, one hundred fifty-three".