71513219 has 2 divisors, whose sum is σ = 71513220. Its totient is φ = 71513218.

The previous prime is 71513161. The next prime is 71513227. The reversal of 71513219 is 91231517.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71513219 - 2⁸ = 71512963 is a prime.

It is a super-2 number, since 2×71513219² = 10228280983483922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71513191 and 71513200.

It is not a weakly prime, because it can be changed into another prime (71513269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35756609 + 35756610.

It is an arithmetic number, because the mean of its divisors is an integer number (35756610).

Almost surely, 2^71513219 is an apocalyptic number.

71513219 is a deficient number, since it is larger than the sum of its proper divisors (1).

71513219 is an equidigital number, since it uses as much as digits as its factorization.

71513219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 29.

The square root of 71513219 is about 8456.5488823751. The cubic root of 71513219 is about 415.0771018501.

The spelling of 71513219 in words is "seventy-one million, five hundred thirteen thousand, two hundred nineteen".