1325915136 has 704 divisors, whose sum is σ = 5282242560. Its totient is φ = 318504960.

The previous prime is 1325915117. The next prime is 1325915141. The reversal of 1325915136 is 6315195231.

It is a happy number.

1325915136 is a `hidden beast` number, since 1 + 32 + 591 + 5 + 1 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1325915136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42771441 + ... + 42771471.

Almost surely, 2^1325915136 is an apocalyptic number.

1325915136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325915136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2641121280).

1325915136 is an abundant number, since it is smaller than the sum of its proper divisors (3956327424).

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

1325915136 is a wasteful number, since it uses less digits than its factorization.

1325915136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 73 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 1325915136 is about 36413.1176363684. The cubic root of 1325915136 is about 1098.5974233965.

The spelling of 1325915136 in words is "one billion, three hundred twenty-five million, nine hundred fifteen thousand, one hundred thirty-six".