71152001 has 2 divisors, whose sum is σ = 71152002. Its totient is φ = 71152000.

The previous prime is 71151991. The next prime is 71152013. The reversal of 71152001 is 10025117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54538225 + 16613776 = 7385^2 + 4076^2 .

It is an emirp because it is prime and its reverse (10025117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71152001 - 2²² = 66957697 is a prime.

It is not a weakly prime, because it can be changed into another prime (71122001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35576000 + 35576001.

It is an arithmetic number, because the mean of its divisors is an integer number (35576001).

Almost surely, 2^71152001 is an apocalyptic number.

It is an amenable number.

71152001 is a deficient number, since it is larger than the sum of its proper divisors (1).

71152001 is an equidigital number, since it uses as much as digits as its factorization.

71152001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 71152001 is about 8435.1645508550. The cubic root of 71152001 is about 414.3770612399.

Adding to 71152001 its reverse (10025117), we get a palindrome (81177118).

The spelling of 71152001 in words is "seventy-one million, one hundred fifty-two thousand, one".