1325633497 has 16 divisors (see below), whose sum is σ = 1466553600. Its totient is φ = 1191849472.

The previous prime is 1325633489. The next prime is 1325633503. The reversal of 1325633497 is 7943365231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1325633497 - 2³ = 1325633489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325633797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382629 + ... + 386077.

It is an arithmetic number, because the mean of its divisors is an integer number (91659600).

Almost surely, 2^1325633497 is an apocalyptic number.

1325633497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1325633497 is a deficient number, since it is larger than the sum of its proper divisors (140920103).

1325633497 is a wasteful number, since it uses less digits than its factorization.

1325633497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472.

The product of its digits is 408240, while the sum is 43.

The square root of 1325633497 is about 36409.2501570686. The cubic root of 1325633497 is about 1098.5196331516.

The spelling of 1325633497 in words is "one billion, three hundred twenty-five million, six hundred thirty-three thousand, four hundred ninety-seven".