7474147129 has 4 divisors (see below), whose sum is σ = 7633171584. Its totient is φ = 7315122676.

The previous prime is 7474147123. The next prime is 7474147139. The reversal of 7474147129 is 9217414747.

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: 9217414747 = 46727 ⋅197261.

It is not a de Polignac number, because 7474147129 - 2¹⁷ = 7474016057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7474147123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79512157 + ... + 79512250.

It is an arithmetic number, because the mean of its divisors is an integer number (1908292896).

Almost surely, 2^7474147129 is an apocalyptic number.

It is an amenable number.

7474147129 is a deficient number, since it is larger than the sum of its proper divisors (159024455).

7474147129 is a wasteful number, since it uses less digits than its factorization.

7474147129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159024454.

The product of its digits is 395136, while the sum is 46.

The square root of 7474147129 is about 86453.1499079126. The cubic root of 7474147129 is about 1955.1821076080.

The spelling of 7474147129 in words is "seven billion, four hundred seventy-four million, one hundred forty-seven thousand, one hundred twenty-nine".