71263901 has 2 divisors, whose sum is σ = 71263902. Its totient is φ = 71263900.

The previous prime is 71263879. The next prime is 71263931. The reversal of 71263901 is 10936217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56625625 + 14638276 = 7525^2 + 3826^2 .

It is a cyclic number.

It is not a de Polignac number, because 71263901 - 2⁶ = 71263837 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 (71263931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35631950 + 35631951.

It is an arithmetic number, because the mean of its divisors is an integer number (35631951).

Almost surely, 2^71263901 is an apocalyptic number.

It is an amenable number.

71263901 is a deficient number, since it is larger than the sum of its proper divisors (1).

71263901 is an equidigital number, since it uses as much as digits as its factorization.

71263901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 71263901 is about 8441.7948920831. The cubic root of 71263901 is about 414.5941762698.

The spelling of 71263901 in words is "seventy-one million, two hundred sixty-three thousand, nine hundred one".