74122081 has 8 divisors (see below), whose sum is σ = 81008928. Its totient is φ = 67260000.

The previous prime is 74122073. The next prime is 74122093. The reversal of 74122081 is 18022147.

It is a happy number.

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 74122081 - 2³ = 74122073 is a prime.

It is a super-2 number, since 2×74122081² = 10988165783541122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74122001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 12181.

It is an arithmetic number, because the mean of its divisors is an integer number (10126116).

Almost surely, 2^74122081 is an apocalyptic number.

It is an amenable number.

74122081 is a deficient number, since it is larger than the sum of its proper divisors (6886847).

74122081 is a wasteful number, since it uses less digits than its factorization.

74122081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 74122081 is about 8609.4181568791. The cubic root of 74122081 is about 420.0643911102.

It can be divided in two parts, 741 and 22081, that added together give a palindrome (22822).

The spelling of 74122081 in words is "seventy-four million, one hundred twenty-two thousand, eighty-one".