1129408627 has 4 divisors (see below), whose sum is σ = 1129668400. Its totient is φ = 1129148856.

The previous prime is 1129408619. The next prime is 1129408633. The reversal of 1129408627 is 7268049211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7268049211 = 401 ⋅18124811.

It is a cyclic number.

It is not a de Polignac number, because 1129408627 - 2³ = 1129408619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129408627.

It is not an unprimeable number, because it can be changed into a prime (1129408667) 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, 123252 + ... + 132097.

It is an arithmetic number, because the mean of its divisors is an integer number (282417100).

Almost surely, 2^1129408627 is an apocalyptic number.

1129408627 is a deficient number, since it is larger than the sum of its proper divisors (259773).

1129408627 is an equidigital number, since it uses as much as digits as its factorization.

1129408627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259772.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 1129408627 is about 33606.6753339273. The cubic root of 1129408627 is about 1041.3987057338.

The spelling of 1129408627 in words is "one billion, one hundred twenty-nine million, four hundred eight thousand, six hundred twenty-seven".