7145155474 has 16 divisors (see below), whose sum is σ = 10862611200. Its totient is φ = 3524361984.

The previous prime is 7145155441. The next prime is 7145155489. The reversal of 7145155474 is 4745515417.

It is a self number, because there is not a number n which added to its sum of digits gives 7145155474.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173707 + ... + 210865.

It is an arithmetic number, because the mean of its divisors is an integer number (678913200).

Almost surely, 2^7145155474 is an apocalyptic number.

7145155474 is a deficient number, since it is larger than the sum of its proper divisors (3717455726).

7145155474 is a wasteful number, since it uses less digits than its factorization.

7145155474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38457.

The product of its digits is 392000, while the sum is 43.

The square root of 7145155474 is about 84529.0214896635. The cubic root of 7145155474 is about 1926.0633220462.

The spelling of 7145155474 in words is "seven billion, one hundred forty-five million, one hundred fifty-five thousand, four hundred seventy-four".