1512790128 has 80 divisors (see below), whose sum is σ = 4434716160. Its totient is φ = 493527744.

The previous prime is 1512790093. The next prime is 1512790129. The reversal of 1512790128 is 8210972151.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1512790092 and 1512790101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1512790129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16950 + ... + 57557.

It is an arithmetic number, because the mean of its divisors is an integer number (55433952).

Almost surely, 2^1512790128 is an apocalyptic number.

1512790128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1512790128 is an abundant number, since it is smaller than the sum of its proper divisors (2921926032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1512790128 is a wasteful number, since it uses less digits than its factorization.

1512790128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74571 (or 74559 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1512790128 is about 38894.6028132439. The cubic root of 1512790128 is about 1147.9586034841.

The spelling of 1512790128 in words is "one billion, five hundred twelve million, seven hundred ninety thousand, one hundred twenty-eight".