1129216372 has 12 divisors (see below), whose sum is σ = 2062047456. Its totient is φ = 540059960.

The previous prime is 1129216351. The next prime is 1129216391. The reversal of 1129216372 is 2736129211.

It is a happy number.

It is a super-2 number, since 2×1129216372² = 2550259229585684768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6136954 + ... + 6137137.

It is an arithmetic number, because the mean of its divisors is an integer number (171837288).

Almost surely, 2^1129216372 is an apocalyptic number.

It is an amenable number.

1129216372 is a deficient number, since it is larger than the sum of its proper divisors (932831084).

1129216372 is a wasteful number, since it uses less digits than its factorization.

1129216372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274118 (or 12274116 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 1129216372 is about 33603.8148429609. The cubic root of 1129216372 is about 1041.3396112470.

The spelling of 1129216372 in words is "one billion, one hundred twenty-nine million, two hundred sixteen thousand, three hundred seventy-two".