1129956503 has 8 divisors (see below), whose sum is σ = 1217653248. Its totient is φ = 1042370784.

The previous prime is 1129956491. The next prime is 1129956511. The reversal of 1129956503 is 3056599211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1129956503 - 2¹² = 1129952407 is a prime.

It is a super-3 number, since 3×1129956503³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129956523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5975 + ... + 47912.

It is an arithmetic number, because the mean of its divisors is an integer number (152206656).

Almost surely, 2^1129956503 is an apocalyptic number.

1129956503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1129956503 is a deficient number, since it is larger than the sum of its proper divisors (87696745).

1129956503 is a wasteful number, since it uses less digits than its factorization.

1129956503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55513.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 1129956503 is about 33614.8256428618. The cubic root of 1129956503 is about 1041.5670726441.

The spelling of 1129956503 in words is "one billion, one hundred twenty-nine million, nine hundred fifty-six thousand, five hundred three".