71854106 has 4 divisors (see below), whose sum is σ = 107781162. Its totient is φ = 35927052.

The previous prime is 71854091. The next prime is 71854109. The reversal of 71854106 is 60145817.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60145817 = 61 ⋅985997.

It can be written as a sum of positive squares in only one way, i.e., 70140625 + 1713481 = 8375^2 + 1309^2 .

It is not an unprimeable number, because it can be changed into a prime (71854109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17963525 + ... + 17963528.

Almost surely, 2^71854106 is an apocalyptic number.

71854106 is a deficient number, since it is larger than the sum of its proper divisors (35927056).

71854106 is a wasteful number, since it uses less digits than its factorization.

71854106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35927055.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 71854106 is about 8476.6801284465. The cubic root of 71854106 is about 415.7355822439.

The spelling of 71854106 in words is "seventy-one million, eight hundred fifty-four thousand, one hundred six".