74152481 has 16 divisors (see below), whose sum is σ = 81768960. Its totient is φ = 66830400.

The previous prime is 74152457. The next prime is 74152489. The reversal of 74152481 is 18425147.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-74152481 is a prime.

It is a super-2 number, since 2×74152481² = 10997180876910722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

74152481 is a Rhonda number in base 10.

Its product of digits (8960) is a multiple of the sum of its prime divisors (896).

It is not an unprimeable number, because it can be changed into a prime (74152489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105431 + ... + 106131.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560).

Almost surely, 2^74152481 is an apocalyptic number.

It is an amenable number.

74152481 is a deficient number, since it is larger than the sum of its proper divisors (7616479).

74152481 is a wasteful number, since it uses less digits than its factorization.

74152481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its digits is 8960, while the sum is 32.

The square root of 74152481 is about 8611.1834842837. The cubic root of 74152481 is about 420.1218108512.

The spelling of 74152481 in words is "seventy-four million, one hundred fifty-two thousand, four hundred eighty-one".