1129900971 has 16 divisors (see below), whose sum is σ = 1597622400. Its totient is φ = 707860608.

The previous prime is 1129900969. The next prime is 1129900979. The reversal of 1129900971 is 1790099211.

It is not a de Polignac number, because 1129900971 - 2¹ = 1129900969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1129900979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16800 + ... + 50418.

It is an arithmetic number, because the mean of its divisors is an integer number (99851400).

Almost surely, 2^1129900971 is an apocalyptic number.

1129900971 is a deficient number, since it is larger than the sum of its proper divisors (467721429).

1129900971 is a wasteful number, since it uses less digits than its factorization.

1129900971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34298.

The product of its (nonzero) digits is 10206, while the sum is 39.

The square root of 1129900971 is about 33613.9996281311. Note that the first 3 decimals coincide. The cubic root of 1129900971 is about 1041.5500096716.

The spelling of 1129900971 in words is "one billion, one hundred twenty-nine million, nine hundred thousand, nine hundred seventy-one".