71242411 has 2 divisors, whose sum is σ = 71242412. Its totient is φ = 71242410.

The previous prime is 71242403. The next prime is 71242421. The reversal of 71242411 is 11424217.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71242411 - 2³ = 71242403 is a prime.

It is a super-2 number, since 2×71242411² = 10150962250185842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71242421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35621205 + 35621206.

It is an arithmetic number, because the mean of its divisors is an integer number (35621206).

Almost surely, 2^71242411 is an apocalyptic number.

71242411 is a deficient number, since it is larger than the sum of its proper divisors (1).

71242411 is an equidigital number, since it uses as much as digits as its factorization.

71242411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 22.

The square root of 71242411 is about 8440.5219625329. The cubic root of 71242411 is about 414.5524977366.

Adding to 71242411 its reverse (11424217), we get a palindrome (82666628).

The spelling of 71242411 in words is "seventy-one million, two hundred forty-two thousand, four hundred eleven".