1204125132 has 48 divisors (see below), whose sum is σ = 3225196800. Its totient is φ = 342514752.

The previous prime is 1204125121. The next prime is 1204125137. The reversal of 1204125132 is 2315214021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1204125099 and 1204125108.

It is not an unprimeable number, because it can be changed into a prime (1204125137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12507 + ... + 50642.

It is an arithmetic number, because the mean of its divisors is an integer number (67191600).

Almost surely, 2^1204125132 is an apocalyptic number.

1204125132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1204125132 is an abundant number, since it is smaller than the sum of its proper divisors (2021071668).

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

1204125132 is a wasteful number, since it uses less digits than its factorization.

1204125132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63390 (or 63388 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1204125132 is about 34700.5062210914. The cubic root of 1204125132 is about 1063.8748451260.

Adding to 1204125132 its reverse (2315214021), we get a palindrome (3519339153).

Subtracting 1204125132 from its reverse (2315214021), we obtain a square (1111088889 = 33333²).

It can be divided in two parts, 12041 and 25132, that added together give a palindrome (37173).

The spelling of 1204125132 in words is "one billion, two hundred four million, one hundred twenty-five thousand, one hundred thirty-two".