71303153 has 2 divisors, whose sum is σ = 71303154. Its totient is φ = 71303152.

The previous prime is 71303147. The next prime is 71303171. The reversal of 71303153 is 35130317.

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., 48330304 + 22972849 = 6952^2 + 4793^2 .

It is a cyclic number.

It is not a de Polignac number, because 71303153 - 2⁸ = 71302897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (71303753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35651576 + 35651577.

It is an arithmetic number, because the mean of its divisors is an integer number (35651577).

Almost surely, 2^71303153 is an apocalyptic number.

It is an amenable number.

71303153 is a deficient number, since it is larger than the sum of its proper divisors (1).

71303153 is an equidigital number, since it uses as much as digits as its factorization.

71303153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 71303153 is about 8444.1194330729. The cubic root of 71303153 is about 414.6702814855.

The spelling of 71303153 in words is "seventy-one million, three hundred three thousand, one hundred fifty-three".