1228953955 has 8 divisors (see below), whose sum is σ = 1477235232. Its totient is φ = 981502848.

The previous prime is 1228953907. The next prime is 1228953997. The reversal of 1228953955 is 5593598221.

It is a happy number.

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 1228953955 - 2⁷ = 1228953827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1228953899 and 1228953908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204279 + ... + 210208.

It is an arithmetic number, because the mean of its divisors is an integer number (184654404).

Almost surely, 2^1228953955 is an apocalyptic number.

1228953955 is a deficient number, since it is larger than the sum of its proper divisors (248281277).

1228953955 is an equidigital number, since it uses as much as digits as its factorization.

1228953955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415085.

The product of its digits is 972000, while the sum is 49.

The square root of 1228953955 is about 35056.4395653637. The cubic root of 1228953955 is about 1071.1374502729.

The spelling of 1228953955 in words is "one billion, two hundred twenty-eight million, nine hundred fifty-three thousand, nine hundred fifty-five".