1129129453 has 4 divisors (see below), whose sum is σ = 1130783328. Its totient is φ = 1127475580.

The previous prime is 1129129429. The next prime is 1129129487. The reversal of 1129129453 is 3549219211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1129129453 - 2¹³ = 1129121261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129129423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825913 + ... + 827278.

It is an arithmetic number, because the mean of its divisors is an integer number (282695832).

Almost surely, 2^1129129453 is an apocalyptic number.

It is an amenable number.

1129129453 is a deficient number, since it is larger than the sum of its proper divisors (1653875).

1129129453 is an equidigital number, since it uses as much as digits as its factorization.

1129129453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653874.

The product of its digits is 19440, while the sum is 37.

The square root of 1129129453 is about 33602.5215274092. The cubic root of 1129129453 is about 1041.3128922696.

The spelling of 1129129453 in words is "one billion, one hundred twenty-nine million, one hundred twenty-nine thousand, four hundred fifty-three".