1325251000 has 32 divisors (see below), whose sum is σ = 3101089680. Its totient is φ = 530100000.

The previous prime is 1325250989. The next prime is 1325251009. The reversal of 1325251000 is 1525231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325251009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661626 + ... + 663625.

Almost surely, 2^1325251000 is an apocalyptic number.

1325251000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325251000 is an abundant number, since it is smaller than the sum of its proper divisors (1775838680).

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

1325251000 is a wasteful number, since it uses less digits than its factorization.

1325251000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325272 (or 1325258 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1325251000 is about 36403.9970332929. The cubic root of 1325251000 is about 1098.4139677259.

Adding to 1325251000 its reverse (1525231), we get a palindrome (1326776231).

The spelling of 1325251000 in words is "one billion, three hundred twenty-five million, two hundred fifty-one thousand".