1428101156 has 6 divisors (see below), whose sum is σ = 2499177030. Its totient is φ = 714050576.

The previous prime is 1428101153. The next prime is 1428101177. The reversal of 1428101156 is 6511018241.

It can be written as a sum of positive squares in only one way, i.e., 1307979556 + 120121600 = 36166^2 + 10960^2 .

It is not an unprimeable number, because it can be changed into a prime (1428101153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178512641 + ... + 178512648.

It is an arithmetic number, because the mean of its divisors is an integer number (416529505).

Almost surely, 2^1428101156 is an apocalyptic number.

It is an amenable number.

1428101156 is a deficient number, since it is larger than the sum of its proper divisors (1071075874).

1428101156 is a wasteful number, since it uses less digits than its factorization.

1428101156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357025293 (or 357025291 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 1428101156 is about 37790.2256674924. The cubic root of 1428101156 is about 1126.1242834000.

Adding to 1428101156 its reverse (6511018241), we get a palindrome (7939119397).

The spelling of 1428101156 in words is "one billion, four hundred twenty-eight million, one hundred one thousand, one hundred fifty-six".