1431045155 has 4 divisors (see below), whose sum is σ = 1717254192. Its totient is φ = 1144836120.

The previous prime is 1431045149. The next prime is 1431045163. The reversal of 1431045155 is 5515401341.

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

It is not a de Polignac number, because 1431045155 - 2⁴ = 1431045139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143104511 + ... + 143104520.

It is an arithmetic number, because the mean of its divisors is an integer number (429313548).

Almost surely, 2^1431045155 is an apocalyptic number.

1431045155 is a deficient number, since it is larger than the sum of its proper divisors (286209037).

1431045155 is an equidigital number, since it uses as much as digits as its factorization.

1431045155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286209036.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1431045155 is about 37829.1574714532. The cubic root of 1431045155 is about 1126.8975790475.

Adding to 1431045155 its reverse (5515401341), we get a palindrome (6946446496).

The spelling of 1431045155 in words is "one billion, four hundred thirty-one million, forty-five thousand, one hundred fifty-five".