1025121332 has 6 divisors (see below), whose sum is σ = 1793962338. Its totient is φ = 512560664.

The previous prime is 1025121271. The next prime is 1025121337. The reversal of 1025121332 is 2331215201.

It can be written as a sum of positive squares in only one way, i.e., 955799056 + 69322276 = 30916^2 + 8326^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025121337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128140163 + ... + 128140170.

It is an arithmetic number, because the mean of its divisors is an integer number (298993723).

Almost surely, 2^1025121332 is an apocalyptic number.

It is an amenable number.

1025121332 is a deficient number, since it is larger than the sum of its proper divisors (768841006).

1025121332 is a wasteful number, since it uses less digits than its factorization.

1025121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256280337 (or 256280335 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1025121332 is about 32017.5160185796. The cubic root of 1025121332 is about 1008.3046197107.

Adding to 1025121332 its reverse (2331215201), we get a palindrome (3356336533).

The spelling of 1025121332 in words is "one billion, twenty-five million, one hundred twenty-one thousand, three hundred thirty-two".