74126881 has 4 divisors (see below), whose sum is σ = 74227392. Its totient is φ = 74026372.

The previous prime is 74126879. The next prime is 74126891. The reversal of 74126881 is 18862147.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18862147 = 3919 ⋅4813.

It is a cyclic number.

It is not a de Polignac number, because 74126881 - 2¹ = 74126879 is a prime.

It is a super-2 number, since 2×74126881² = 10989588973576322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74126881.

It is not an unprimeable number, because it can be changed into a prime (74126831) 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 3 ways as a sum of consecutive naturals, for example, 49141 + ... + 50626.

It is an arithmetic number, because the mean of its divisors is an integer number (18556848).

Almost surely, 2^74126881 is an apocalyptic number.

It is an amenable number.

74126881 is a deficient number, since it is larger than the sum of its proper divisors (100511).

74126881 is an equidigital number, since it uses as much as digits as its factorization.

74126881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100510.

The product of its digits is 21504, while the sum is 37.

The square root of 74126881 is about 8609.6969168490. The cubic root of 74126881 is about 420.0734584287.

The spelling of 74126881 in words is "seventy-four million, one hundred twenty-six thousand, eight hundred eighty-one".