1125020516 has 12 divisors (see below), whose sum is σ = 1969020732. Its totient is φ = 562443168.

The previous prime is 1125020503. The next prime is 1125020539. The reversal of 1125020516 is 6150205211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 176996416 + 948024100 = 13304^2 + 30790^2 .

It is a super-2 number, since 2×1125020516² = 2531342322841812512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1125020491 and 1125020500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57446 + ... + 74498.

It is an arithmetic number, because the mean of its divisors is an integer number (164085061).

Almost surely, 2^1125020516 is an apocalyptic number.

It is an amenable number.

1125020516 is a deficient number, since it is larger than the sum of its proper divisors (844000216).

1125020516 is a wasteful number, since it uses less digits than its factorization.

1125020516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33550 (or 33548 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1125020516 is about 33541.3254955734. The cubic root of 1125020516 is about 1040.0482337097.

Adding to 1125020516 its reverse (6150205211), we get a palindrome (7275225727).

The spelling of 1125020516 in words is "one billion, one hundred twenty-five million, twenty thousand, five hundred sixteen".