1125270090 has 64 divisors (see below), whose sum is σ = 3429400320. Its totient is φ = 257204160.

The previous prime is 1125270089. The next prime is 1125270109. The reversal of 1125270090 is 900725211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295801 + ... + 299580.

It is an arithmetic number, because the mean of its divisors is an integer number (53584380).

Almost surely, 2^1125270090 is an apocalyptic number.

1125270090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125270090 is an abundant number, since it is smaller than the sum of its proper divisors (2304130230).

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

1125270090 is a wasteful number, since it uses less digits than its factorization.

1125270090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595404 (or 595398 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1125270090 is about 33545.0456848698. The cubic root of 1125270090 is about 1040.1251359535.

The spelling of 1125270090 in words is "one billion, one hundred twenty-five million, two hundred seventy thousand, ninety".