74911481 has 4 divisors (see below), whose sum is σ = 74988672. Its totient is φ = 74834292.

The previous prime is 74911457. The next prime is 74911511. The reversal of 74911481 is 18411947.

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.

It is a cyclic number.

It is not a de Polignac number, because 74911481 - 2¹⁴ = 74895097 is a prime.

It is a super-2 number, since 2×74911481² = 11223459971226722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74911411) 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, 37121 + ... + 39086.

It is an arithmetic number, because the mean of its divisors is an integer number (18747168).

Almost surely, 2^74911481 is an apocalyptic number.

It is an amenable number.

74911481 is a deficient number, since it is larger than the sum of its proper divisors (77191).

74911481 is an equidigital number, since it uses as much as digits as its factorization.

74911481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77190.

The product of its digits is 8064, while the sum is 35.

The square root of 74911481 is about 8655.1418821415. The cubic root of 74911481 is about 421.5503566334.

The spelling of 74911481 in words is "seventy-four million, nine hundred eleven thousand, four hundred eighty-one".