72142153 has 2 divisors, whose sum is σ = 72142154. Its totient is φ = 72142152.

The previous prime is 72142151. The next prime is 72142171. The reversal of 72142153 is 35124127.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46416969 + 25725184 = 6813^2 + 5072^2 .

It is a cyclic number.

It is not a de Polignac number, because 72142153 - 2¹ = 72142151 is a prime.

Together with 72142151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72142151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36071076 + 36071077.

It is an arithmetic number, because the mean of its divisors is an integer number (36071077).

Almost surely, 2^72142153 is an apocalyptic number.

It is an amenable number.

72142153 is a deficient number, since it is larger than the sum of its proper divisors (1).

72142153 is an equidigital number, since it uses as much as digits as its factorization.

72142153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 72142153 is about 8493.6536896674. The cubic root of 72142153 is about 416.2903718053.

The spelling of 72142153 in words is "seventy-two million, one hundred forty-two thousand, one hundred fifty-three".