71242078 has 8 divisors (see below), whose sum is σ = 106905960. Its totient is φ = 35606760.

The previous prime is 71242069. The next prime is 71242079. The reversal of 71242078 is 87024217.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71242079) 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, 913 + ... + 11971.

It is an arithmetic number, because the mean of its divisors is an integer number (13363245).

Almost surely, 2^71242078 is an apocalyptic number.

71242078 is a deficient number, since it is larger than the sum of its proper divisors (35663882).

71242078 is a wasteful number, since it uses less digits than its factorization.

71242078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14282.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 71242078 is about 8440.5022362416. The cubic root of 71242078 is about 414.5518518377.

The spelling of 71242078 in words is "seventy-one million, two hundred forty-two thousand, seventy-eight".