1129435452 has 36 divisors (see below), whose sum is σ = 2880237360. Its totient is φ = 373145472.

The previous prime is 1129435451. The next prime is 1129435453. The reversal of 1129435452 is 2545349211.

1129435452 is a `hidden beast` number, since 11 + 294 + 354 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1129435451) and next prime (1129435453).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129435451) 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, 134752 + ... + 142887.

Almost surely, 2^1129435452 is an apocalyptic number.

1129435452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1129435452 is an abundant number, since it is smaller than the sum of its proper divisors (1750801908).

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

1129435452 is a wasteful number, since it uses less digits than its factorization.

1129435452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277762 (or 277757 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 1129435452 is about 33607.0744338153. The cubic root of 1129435452 is about 1041.4069505499.

The spelling of 1129435452 in words is "one billion, one hundred twenty-nine million, four hundred thirty-five thousand, four hundred fifty-two".