1428607143 has 24 divisors (see below), whose sum is σ = 2082153840. Its totient is φ = 943850880.

The previous prime is 1428607139. The next prime is 1428607151. The reversal of 1428607143 is 3417068241.

1428607143 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 607 + 1 + 43 = 666.

It is not a de Polignac number, because 1428607143 - 2² = 1428607139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1428607098 and 1428607107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428607163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598813 + ... + 601193.

It is an arithmetic number, because the mean of its divisors is an integer number (86756410).

Almost surely, 2^1428607143 is an apocalyptic number.

1428607143 is a deficient number, since it is larger than the sum of its proper divisors (653546697).

1428607143 is a wasteful number, since it uses less digits than its factorization.

1428607143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959 (or 2956 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1428607143 is about 37796.9197554510. The cubic root of 1428607143 is about 1126.2572658019.

The spelling of 1428607143 in words is "one billion, four hundred twenty-eight million, six hundred seven thousand, one hundred forty-three".