71354401 has 2 divisors, whose sum is σ = 71354402. Its totient is φ = 71354400.

The previous prime is 71354357. The next prime is 71354407. The reversal of 71354401 is 10445317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70963776 + 390625 = 8424^2 + 625^2 .

It is an emirp because it is prime and its reverse (10445317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71354401 - 2⁷ = 71354273 is a prime.

It is a super-3 number, since 3×71354401³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (71354407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35677200 + 35677201.

It is an arithmetic number, because the mean of its divisors is an integer number (35677201).

Almost surely, 2^71354401 is an apocalyptic number.

It is an amenable number.

71354401 is a deficient number, since it is larger than the sum of its proper divisors (1).

71354401 is an equidigital number, since it uses as much as digits as its factorization.

71354401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 71354401 is about 8447.1534258589. The cubic root of 71354401 is about 414.7696035699.

Adding to 71354401 its reverse (10445317), we get a palindrome (81799718).

The spelling of 71354401 in words is "seventy-one million, three hundred fifty-four thousand, four hundred one".