1325641158 has 24 divisors (see below), whose sum is σ = 2964876096. Its totient is φ = 427626000.

The previous prime is 1325641099. The next prime is 1325641199. The reversal of 1325641158 is 8511465231.

1325641158 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 641 + 1 + 5 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1187293 + ... + 1188408.

It is an arithmetic number, because the mean of its divisors is an integer number (123536504).

Almost surely, 2^1325641158 is an apocalyptic number.

1325641158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1325641158 is an abundant number, since it is smaller than the sum of its proper divisors (1639234938).

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

1325641158 is a wasteful number, since it uses less digits than its factorization.

1325641158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375740 (or 2375737 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1325641158 is about 36409.3553636974. The cubic root of 1325641158 is about 1098.5217493078.

The spelling of 1325641158 in words is "one billion, three hundred twenty-five million, six hundred forty-one thousand, one hundred fifty-eight".