1129200697 has 4 divisors (see below), whose sum is σ = 1129337316. Its totient is φ = 1129064080.

The previous prime is 1129200691. The next prime is 1129200701. The reversal of 1129200697 is 7960029211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 731756601 + 397444096 = 27051^2 + 19936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1129200697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129200691) 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, 55054 + ... + 72727.

It is an arithmetic number, because the mean of its divisors is an integer number (282334329).

Almost surely, 2^1129200697 is an apocalyptic number.

It is an amenable number.

1129200697 is a deficient number, since it is larger than the sum of its proper divisors (136619).

1129200697 is an equidigital number, since it uses as much as digits as its factorization.

1129200697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136618.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1129200697 is about 33603.5816097035. The cubic root of 1129200697 is about 1041.3347928394.

The spelling of 1129200697 in words is "one billion, one hundred twenty-nine million, two hundred thousand, six hundred ninety-seven".