1129270347 has 12 divisors (see below), whose sum is σ = 1632151560. Its totient is φ = 752393088.

The previous prime is 1129270277. The next prime is 1129270379. The reversal of 1129270347 is 7430729211.

It is not a de Polignac number, because 1129270347 - 2⁸ = 1129270091 is a prime.

It is a super-2 number, since 2×1129270347² = 2550503033227000818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1129270447) 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, 21697 + ... + 52242.

It is an arithmetic number, because the mean of its divisors is an integer number (136012630).

Almost surely, 2^1129270347 is an apocalyptic number.

1129270347 is a deficient number, since it is larger than the sum of its proper divisors (502881213).

1129270347 is a wasteful number, since it uses less digits than its factorization.

1129270347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75642 (or 75639 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1129270347 is about 33604.6179415865. The cubic root of 1129270347 is about 1041.3562025196.

Adding to 1129270347 its reverse (7430729211), we get a palindrome (8559999558).

The spelling of 1129270347 in words is "one billion, one hundred twenty-nine million, two hundred seventy thousand, three hundred forty-seven".