1013550128 has 10 divisors (see below), whose sum is σ = 1963753404. Its totient is φ = 506775056.

The previous prime is 1013550127. The next prime is 1013550143. The reversal of 1013550128 is 8210553101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1013550097 and 1013550106.

It is not an unprimeable number, because it can be changed into a prime (1013550121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31673426 + ... + 31673457.

Almost surely, 2^1013550128 is an apocalyptic number.

It is an amenable number.

1013550128 is a deficient number, since it is larger than the sum of its proper divisors (950203276).

1013550128 is an equidigital number, since it uses as much as digits as its factorization.

1013550128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63346891 (or 63346885 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1013550128 is about 31836.3020465631. The cubic root of 1013550128 is about 1004.4964608696.

The spelling of 1013550128 in words is "one billion, thirteen million, five hundred fifty thousand, one hundred twenty-eight".