71535413 has 2 divisors, whose sum is σ = 71535414. Its totient is φ = 71535412.

The previous prime is 71535407. The next prime is 71535449. The reversal of 71535413 is 31453517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50951044 + 20584369 = 7138^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 71535413 - 2⁶ = 71535349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71535613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35767706 + 35767707.

It is an arithmetic number, because the mean of its divisors is an integer number (35767707).

Almost surely, 2^71535413 is an apocalyptic number.

It is an amenable number.

71535413 is a deficient number, since it is larger than the sum of its proper divisors (1).

71535413 is an equidigital number, since it uses as much as digits as its factorization.

71535413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 29.

The square root of 71535413 is about 8457.8610180116. The cubic root of 71535413 is about 415.1200368883.

The spelling of 71535413 in words is "seventy-one million, five hundred thirty-five thousand, four hundred thirteen".