1129851 has 6 divisors (see below), whose sum is σ = 1632020. Its totient is φ = 753228.

The previous prime is 1129847. The next prime is 1129853. The reversal of 1129851 is 1589211.

It is not a de Polignac number, because 1129851 - 2² = 1129847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129853) 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 in 5 ways as a sum of consecutive naturals, for example, 62761 + ... + 62778.

2^1129851 is an apocalyptic number.

1129851 is a deficient number, since it is larger than the sum of its proper divisors (502169).

1129851 is a wasteful number, since it uses less digits than its factorization.

1129851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125545 (or 125542 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 1129851 is about 1062.9444952583. The cubic root of 1129851 is about 104.1534654915.

The spelling of 1129851 in words is "one million, one hundred twenty-nine thousand, eight hundred fifty-one".