1228510755 has 24 divisors (see below), whose sum is σ = 2138273280. Its totient is φ = 652481280.

The previous prime is 1228510697. The next prime is 1228510771. The reversal of 1228510755 is 5570158221.

It is not a de Polignac number, because 1228510755 - 2¹⁷ = 1228379683 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45795 + ... + 67484.

It is an arithmetic number, because the mean of its divisors is an integer number (89094720).

Almost surely, 2^1228510755 is an apocalyptic number.

1228510755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1228510755 is a deficient number, since it is larger than the sum of its proper divisors (909762525).

1228510755 is a wasteful number, since it uses less digits than its factorization.

1228510755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113531 (or 113528 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 1228510755 is about 35050.1177601445. The cubic root of 1228510755 is about 1071.0086726799.

Adding to 1228510755 its reverse (5570158221), we get a palindrome (6798668976).

The spelling of 1228510755 in words is "one billion, two hundred twenty-eight million, five hundred ten thousand, seven hundred fifty-five".