1404431141 has 4 divisors (see below), whose sum is σ = 1407559500. Its totient is φ = 1401302784.

The previous prime is 1404431137. The next prime is 1404431177. The reversal of 1404431141 is 1411344041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 756525025 + 647906116 = 27505^2 + 25454^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404431141 - 2² = 1404431137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404431741) 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, 1563506 + ... + 1564403.

It is an arithmetic number, because the mean of its divisors is an integer number (351889875).

Almost surely, 2^1404431141 is an apocalyptic number.

It is an amenable number.

1404431141 is a deficient number, since it is larger than the sum of its proper divisors (3128359).

1404431141 is an equidigital number, since it uses as much as digits as its factorization.

1404431141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128358.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1404431141 is about 37475.7406998181. The cubic root of 1404431141 is about 1119.8679534482.

Adding to 1404431141 its reverse (1411344041), we get a palindrome (2815775182).

The spelling of 1404431141 in words is "one billion, four hundred four million, four hundred thirty-one thousand, one hundred forty-one".