71242601 has 2 divisors, whose sum is σ = 71242602. Its totient is φ = 71242600.

The previous prime is 71242519. The next prime is 71242621. The reversal of 71242601 is 10624217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62031376 + 9211225 = 7876^2 + 3035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71242601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71242621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35621300 + 35621301.

It is an arithmetic number, because the mean of its divisors is an integer number (35621301).

Almost surely, 2^71242601 is an apocalyptic number.

It is an amenable number.

71242601 is a deficient number, since it is larger than the sum of its proper divisors (1).

71242601 is an equidigital number, since it uses as much as digits as its factorization.

71242601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 71242601 is about 8440.5332177535. The cubic root of 71242601 is about 414.5528662666.

Adding to 71242601 its reverse (10624217), we get a palindrome (81866818).

The spelling of 71242601 in words is "seventy-one million, two hundred forty-two thousand, six hundred one".