71242274 has 8 divisors (see below), whose sum is σ = 113149548. Its totient is φ = 33525760.

The previous prime is 71242261. The next prime is 71242277. The reversal of 71242274 is 47224217.

It can be written as a sum of positive squares in 2 ways, for example, as 63091249 + 8151025 = 7943^2 + 2855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (71242277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047647 + ... + 1047714.

Almost surely, 2^71242274 is an apocalyptic number.

71242274 is a deficient number, since it is larger than the sum of its proper divisors (41907274).

71242274 is a wasteful number, since it uses less digits than its factorization.

71242274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095380.

The product of its digits is 6272, while the sum is 29.

The square root of 71242274 is about 8440.5138469171. The cubic root of 71242274 is about 414.5522320067.

The spelling of 71242274 in words is "seventy-one million, two hundred forty-two thousand, two hundred seventy-four".