1228928953 has 8 divisors (see below), whose sum is σ = 1411845120. Its totient is φ = 1047851520.

The previous prime is 1228928927. The next prime is 1228928971. The reversal of 1228928953 is 3598298221.

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

It is a cyclic number.

It is not a de Polignac number, because 1228928953 - 2¹⁷ = 1228797881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1228928897 and 1228928906.

It is not an unprimeable number, because it can be changed into a prime (1228928993) 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, 458248 + ... + 460921.

It is an arithmetic number, because the mean of its divisors is an integer number (176480640).

Almost surely, 2^1228928953 is an apocalyptic number.

It is an amenable number.

1228928953 is a deficient number, since it is larger than the sum of its proper divisors (182916167).

1228928953 is an equidigital number, since it uses as much as digits as its factorization.

1228928953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919367.

The product of its digits is 622080, while the sum is 49.

The square root of 1228928953 is about 35056.0829671542. The cubic root of 1228928953 is about 1071.1301864369.

It can be divided in two parts, 1228928 and 953, that added together give a square (1229881 = 1109²).

The spelling of 1228928953 in words is "one billion, two hundred twenty-eight million, nine hundred twenty-eight thousand, nine hundred fifty-three".