1405143144 has 48 divisors (see below), whose sum is σ = 3898423620. Its totient is φ = 456956160.

The previous prime is 1405143139. The next prime is 1405143197. The reversal of 1405143144 is 4413415041.

1405143144 is a `hidden beast` number, since 1 + 4 + 0 + 514 + 3 + 144 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 908299044 + 496844100 = 30138^2 + 22290^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235047 + ... + 240950.

Almost surely, 2^1405143144 is an apocalyptic number.

It is an amenable number.

1405143144 is an abundant number, since it is smaller than the sum of its proper divisors (2493280476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1405143144 is a wasteful number, since it uses less digits than its factorization.

1405143144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476050 (or 476043 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1405143144 is about 37485.2390148442. The cubic root of 1405143144 is about 1120.0571675752.

Adding to 1405143144 its reverse (4413415041), we get a palindrome (5818558185).

The spelling of 1405143144 in words is "one billion, four hundred five million, one hundred forty-three thousand, one hundred forty-four".