1125153530 has 16 divisors (see below), whose sum is σ = 2026854144. Its totient is φ = 449710800.

The previous prime is 1125153509. The next prime is 1125153553. The reversal of 1125153530 is 353515211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125153530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30146 + ... + 56205.

It is an arithmetic number, because the mean of its divisors is an integer number (126678384).

Almost surely, 2^1125153530 is an apocalyptic number.

1125153530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125153530 is a deficient number, since it is larger than the sum of its proper divisors (901700614).

1125153530 is a wasteful number, since it uses less digits than its factorization.

1125153530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87661.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1125153530 is about 33543.3082745277. The cubic root of 1125153530 is about 1040.0892212656.

Adding to 1125153530 its reverse (353515211), we get a palindrome (1478668741).

The spelling of 1125153530 in words is "one billion, one hundred twenty-five million, one hundred fifty-three thousand, five hundred thirty".