71117942 has 16 divisors (see below), whose sum is σ = 123288480. Its totient is φ = 30136128.

The previous prime is 71117939. The next prime is 71117983. The reversal of 71117942 is 24971117.

It is a junction number, because it is equal to n+sod(n) for n = 71117899 and 71117908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27293 + ... + 29784.

It is an arithmetic number, because the mean of its divisors is an integer number (7705530).

Almost surely, 2^71117942 is an apocalyptic number.

71117942 is a deficient number, since it is larger than the sum of its proper divisors (52170538).

71117942 is a wasteful number, since it uses less digits than its factorization.

71117942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57175.

The product of its digits is 3528, while the sum is 32.

The square root of 71117942 is about 8433.1454392771. The cubic root of 71117942 is about 414.3109327608.

The spelling of 71117942 in words is "seventy-one million, one hundred seventeen thousand, nine hundred forty-two".