1129499136 has 120 divisors (see below), whose sum is σ = 3365391744. Its totient is φ = 364308480.

The previous prime is 1129499131. The next prime is 1129499153. The reversal of 1129499136 is 6319949211.

1129499136 is a `hidden beast` number, since 1 + 1 + 29 + 499 + 136 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1129499091 and 1129499100.

It is not an unprimeable number, because it can be changed into a prime (1129499131) 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, 138895 + ... + 146801.

Almost surely, 2^1129499136 is an apocalyptic number.

1129499136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129499136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682695872).

1129499136 is an abundant number, since it is smaller than the sum of its proper divisors (2235892608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129499136 is an equidigital number, since it uses as much as digits as its factorization.

1129499136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7962 (or 7943 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 1129499136 is about 33608.0218995406. The cubic root of 1129499136 is about 1041.4265236660.

The spelling of 1129499136 in words is "one billion, one hundred twenty-nine million, four hundred ninety-nine thousand, one hundred thirty-six".