1228391114 has 4 divisors (see below), whose sum is σ = 1842586674. Its totient is φ = 614195556.

The previous prime is 1228391113. The next prime is 1228391141. The reversal of 1228391114 is 4111938221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 807525889 + 420865225 = 28417^2 + 20515^2 .

It is not an unprimeable number, because it can be changed into a prime (1228391113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307097777 + ... + 307097780.

Almost surely, 2^1228391114 is an apocalyptic number.

1228391114 is a deficient number, since it is larger than the sum of its proper divisors (614195560).

1228391114 is an equidigital number, since it uses as much as digits as its factorization.

1228391114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614195559.

The product of its digits is 3456, while the sum is 32.

The square root of 1228391114 is about 35048.4110053509. The cubic root of 1228391114 is about 1070.9739041040.

The spelling of 1228391114 in words is "one billion, two hundred twenty-eight million, three hundred ninety-one thousand, one hundred fourteen".