1325538015 has 32 divisors (see below), whose sum is σ = 2154387456. Its totient is φ = 695819520.

The previous prime is 1325538013. The next prime is 1325538023. The reversal of 1325538015 is 5108355231.

It is not a de Polignac number, because 1325538015 - 2¹ = 1325538013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325538013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 707530 + ... + 709400.

It is an arithmetic number, because the mean of its divisors is an integer number (67324608).

Almost surely, 2^1325538015 is an apocalyptic number.

1325538015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1325538015 is a deficient number, since it is larger than the sum of its proper divisors (828849441).

1325538015 is a wasteful number, since it uses less digits than its factorization.

1325538015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1325538015 is about 36407.9389007398. The cubic root of 1325538015 is about 1098.4932579958.

The spelling of 1325538015 in words is "one billion, three hundred twenty-five million, five hundred thirty-eight thousand, fifteen".