1404157171 has 4 divisors (see below), whose sum is σ = 1478060200. Its totient is φ = 1330254144.

The previous prime is 1404157169. The next prime is 1404157189. The reversal of 1404157171 is 1717514041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1404157171 - 2¹ = 1404157169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1404157471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36951486 + ... + 36951523.

It is an arithmetic number, because the mean of its divisors is an integer number (369515050).

Almost surely, 2^1404157171 is an apocalyptic number.

1404157171 is a deficient number, since it is larger than the sum of its proper divisors (73903029).

1404157171 is an equidigital number, since it uses as much as digits as its factorization.

1404157171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73903028.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 1404157171 is about 37472.0852235367. The cubic root of 1404157171 is about 1119.7951291407.

The spelling of 1404157171 in words is "one billion, four hundred four million, one hundred fifty-seven thousand, one hundred seventy-one".