1129850 has 24 divisors (see below), whose sum is σ = 2142720. Its totient is φ = 443120.

The previous prime is 1129847. The next prime is 1129853. The reversal of 1129850 is 589211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1129847) and next prime (1129853).

It is a super-2 number, since 2×1129850² = 2553122045000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1129853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2759 + ... + 3141.

It is an arithmetic number, because the mean of its divisors is an integer number (89280).

2^1129850 is an apocalyptic number.

1129850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1129850 is a deficient number, since it is larger than the sum of its proper divisors (1012870).

1129850 is a wasteful number, since it uses less digits than its factorization.

1129850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1129850 is about 1062.9440248668. The cubic root of 1129850 is about 104.1534347637.

The spelling of 1129850 in words is "one million, one hundred twenty-nine thousand, eight hundred fifty".