71842113 has 16 divisors (see below), whose sum is σ = 121637760. Its totient is φ = 41052528.

The previous prime is 71842093. The next prime is 71842151. The reversal of 71842113 is 31124817.

It is not a de Polignac number, because 71842113 - 2⁵ = 71842081 is a prime.

It is a super-2 number, since 2×71842113² = 10322578400609538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (71842163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189870 + ... + 190247.

It is an arithmetic number, because the mean of its divisors is an integer number (7602360).

Almost surely, 2^71842113 is an apocalyptic number.

It is an amenable number.

71842113 is a deficient number, since it is larger than the sum of its proper divisors (49795647).

71842113 is a wasteful number, since it uses less digits than its factorization.

71842113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380133 (or 380127 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 71842113 is about 8475.9726875445. The cubic root of 71842113 is about 415.7124511405.

The spelling of 71842113 in words is "seventy-one million, eight hundred forty-two thousand, one hundred thirteen".