71261461 has 2 divisors, whose sum is σ = 71261462. Its totient is φ = 71261460.

The previous prime is 71261453. The next prime is 71261471. The reversal of 71261461 is 16416217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70660836 + 600625 = 8406^2 + 775^2 .

It is an emirp because it is prime and its reverse (16416217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71261461 - 2³ = 71261453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71261441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35630730 + 35630731.

It is an arithmetic number, because the mean of its divisors is an integer number (35630731).

Almost surely, 2^71261461 is an apocalyptic number.

It is an amenable number.

71261461 is a deficient number, since it is larger than the sum of its proper divisors (1).

71261461 is an equidigital number, since it uses as much as digits as its factorization.

71261461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 71261461 is about 8441.6503718171. The cubic root of 71261461 is about 414.5894444615.

Adding to 71261461 its reverse (16416217), we get a palindrome (87677678).

The spelling of 71261461 in words is "seventy-one million, two hundred sixty-one thousand, four hundred sixty-one".