71349029 has 4 divisors (see below), whose sum is σ = 72084684. Its totient is φ = 70613376.

The previous prime is 71348989. The next prime is 71349053. The reversal of 71349029 is 92094317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54316900 + 17032129 = 7370^2 + 4127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71349029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71349029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71349079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367682 + ... + 367875.

It is an arithmetic number, because the mean of its divisors is an integer number (18021171).

Almost surely, 2^71349029 is an apocalyptic number.

It is an amenable number.

71349029 is a deficient number, since it is larger than the sum of its proper divisors (735655).

71349029 is an equidigital number, since it uses as much as digits as its factorization.

71349029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735654.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 71349029 is about 8446.8354429336. The cubic root of 71349029 is about 414.7591945029.

The spelling of 71349029 in words is "seventy-one million, three hundred forty-nine thousand, twenty-nine".