1228553530 has 16 divisors (see below), whose sum is σ = 2212404480. Its totient is φ = 491197392.

The previous prime is 1228553507. The next prime is 1228553537. The reversal of 1228553530 is 353558221.

It is not an unprimeable number, because it can be changed into a prime (1228553537) 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, 3990 + ... + 49729.

It is an arithmetic number, because the mean of its divisors is an integer number (138275280).

Almost surely, 2^1228553530 is an apocalyptic number.

1228553530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228553530 is a deficient number, since it is larger than the sum of its proper divisors (983850950).

1228553530 is a wasteful number, since it uses less digits than its factorization.

1228553530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56013.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 1228553530 is about 35050.7279524976. The cubic root of 1228553530 is about 1071.0211028694.

The spelling of 1228553530 in words is "one billion, two hundred twenty-eight million, five hundred fifty-three thousand, five hundred thirty".