71398142 has 8 divisors (see below), whose sum is σ = 108912600. Its totient is φ = 35093944.

The previous prime is 71398127. The next prime is 71398153. The reversal of 71398142 is 24189317.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302417 + ... + 302652.

It is an arithmetic number, because the mean of its divisors is an integer number (13614075).

Almost surely, 2^71398142 is an apocalyptic number.

71398142 is a deficient number, since it is larger than the sum of its proper divisors (37514458).

71398142 is a wasteful number, since it uses less digits than its factorization.

71398142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605130.

The product of its digits is 12096, while the sum is 35.

The square root of 71398142 is about 8449.7421262427. The cubic root of 71398142 is about 414.8543389708.

The spelling of 71398142 in words is "seventy-one million, three hundred ninety-eight thousand, one hundred forty-two".