75814139 has 4 divisors (see below), whose sum is σ = 75832680. Its totient is φ = 75795600.

The previous prime is 75814121. The next prime is 75814157. The reversal of 75814139 is 93141857.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (75814121) and next prime (75814157).

It is a cyclic number.

It is not a de Polignac number, because 75814139 - 2¹² = 75810043 is a prime.

It is a super-2 number, since 2×75814139² = 11495567344622642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75811139) 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, 137 + ... + 12314.

It is an arithmetic number, because the mean of its divisors is an integer number (18958170).

Almost surely, 2^75814139 is an apocalyptic number.

75814139 is a deficient number, since it is larger than the sum of its proper divisors (18541).

75814139 is a wasteful number, since it uses less digits than its factorization.

75814139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18540.

The product of its digits is 30240, while the sum is 38.

The square root of 75814139 is about 8707.1315023950. The cubic root of 75814139 is about 423.2367807716.

The spelling of 75814139 in words is "seventy-five million, eight hundred fourteen thousand, one hundred thirty-nine".