1026515140 has 48 divisors (see below), whose sum is σ = 2466946944. Its totient is φ = 351475200.

The previous prime is 1026515101. The next prime is 1026515167. The reversal of 1026515140 is 415156201.

It is a happy number.

1026515140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109020 + ... + 118060.

It is an arithmetic number, because the mean of its divisors is an integer number (51394728).

Almost surely, 2^1026515140 is an apocalyptic number.

1026515140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026515140 is an abundant number, since it is smaller than the sum of its proper divisors (1440431804).

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

1026515140 is a wasteful number, since it uses less digits than its factorization.

1026515140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868 (or 9866 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1026515140 is about 32039.2749605855. The cubic root of 1026515140 is about 1008.7613937980.

The spelling of 1026515140 in words is "one billion, twenty-six million, five hundred fifteen thousand, one hundred forty".