1125421210 has 16 divisors (see below), whose sum is σ = 2091105792. Its totient is φ = 435646800.

The previous prime is 1125421207. The next prime is 1125421223. The reversal of 1125421210 is 121245211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814886 + ... + 1815505.

It is an arithmetic number, because the mean of its divisors is an integer number (130694112).

Almost surely, 2^1125421210 is an apocalyptic number.

1125421210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125421210 is a deficient number, since it is larger than the sum of its proper divisors (965684582).

1125421210 is a wasteful number, since it uses less digits than its factorization.

1125421210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630429.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1125421210 is about 33547.2981028279. The cubic root of 1125421210 is about 1040.1716956420.

Adding to 1125421210 its reverse (121245211), we get a palindrome (1246666421).

The spelling of 1125421210 in words is "one billion, one hundred twenty-five million, four hundred twenty-one thousand, two hundred ten".