1243001325 has 48 divisors (see below), whose sum is σ = 2189699136. Its totient is φ = 620006400.

The previous prime is 1243001303. The next prime is 1243001341. The reversal of 1243001325 is 5231003421.

It is not a de Polignac number, because 1243001325 - 2¹⁶ = 1242935789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204835 + ... + 210815.

It is an arithmetic number, because the mean of its divisors is an integer number (45618732).

Almost surely, 2^1243001325 is an apocalyptic number.

1243001325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1243001325 is a deficient number, since it is larger than the sum of its proper divisors (946697811).

1243001325 is a wasteful number, since it uses less digits than its factorization.

1243001325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174 (or 6169 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1243001325 is about 35256.2239186218. The cubic root of 1243001325 is about 1075.2031561242.

Adding to 1243001325 its reverse (5231003421), we get a palindrome (6474004746).

The spelling of 1243001325 in words is "one billion, two hundred forty-three million, one thousand, three hundred twenty-five".