71194381 has 8 divisors (see below), whose sum is σ = 72502304. Its totient is φ = 69891120.

The previous prime is 71194373. The next prime is 71194399. The reversal of 71194381 is 18349117.

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

It is a cyclic number.

It is not a de Polignac number, because 71194381 - 2³ = 71194373 is a prime.

It is a super-2 number, since 2×71194381² = 10137279771946322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71194301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47266 + ... + 48748.

It is an arithmetic number, because the mean of its divisors is an integer number (9062788).

Almost surely, 2^71194381 is an apocalyptic number.

It is an amenable number.

71194381 is a deficient number, since it is larger than the sum of its proper divisors (1307923).

71194381 is a wasteful number, since it uses less digits than its factorization.

71194381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331.

The product of its digits is 6048, while the sum is 34.

The square root of 71194381 is about 8437.6762796400. The cubic root of 71194381 is about 414.4593161969.

The spelling of 71194381 in words is "seventy-one million, one hundred ninety-four thousand, three hundred eighty-one".