1129895458 has 8 divisors (see below), whose sum is σ = 1784045520. Its totient is φ = 535213620.

The previous prime is 1129895449. The next prime is 1129895509. The reversal of 1129895458 is 8545989211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14867008 + ... + 14867083.

It is an arithmetic number, because the mean of its divisors is an integer number (223005690).

Almost surely, 2^1129895458 is an apocalyptic number.

1129895458 is a deficient number, since it is larger than the sum of its proper divisors (654150062).

1129895458 is a wasteful number, since it uses less digits than its factorization.

1129895458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29734112.

The product of its digits is 1036800, while the sum is 52.

The square root of 1129895458 is about 33613.9176235083. The cubic root of 1129895458 is about 1041.5483156959.

The spelling of 1129895458 in words is "one billion, one hundred twenty-nine million, eight hundred ninety-five thousand, four hundred fifty-eight".