71400541 has 2 divisors, whose sum is σ = 71400542. Its totient is φ = 71400540.

The previous prime is 71400529. The next prime is 71400551. The reversal of 71400541 is 14500417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67996516 + 3404025 = 8246^2 + 1845^2 .

It is a cyclic number.

It is not a de Polignac number, because 71400541 - 2⁵ = 71400509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71400551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35700270 + 35700271.

It is an arithmetic number, because the mean of its divisors is an integer number (35700271).

Almost surely, 2^71400541 is an apocalyptic number.

It is an amenable number.

71400541 is a deficient number, since it is larger than the sum of its proper divisors (1).

71400541 is an equidigital number, since it uses as much as digits as its factorization.

71400541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 71400541 is about 8449.8840820451. The cubic root of 71400541 is about 414.8589853308.

Adding to 71400541 its reverse (14500417), we get a palindrome (85900958).

The spelling of 71400541 in words is "seventy-one million, four hundred thousand, five hundred forty-one".