1349525505 has 16 divisors (see below), whose sum is σ = 2173544064. Its totient is φ = 714979200.

The previous prime is 1349525473. The next prime is 1349525533. The reversal of 1349525505 is 5055259431.

It is not a de Polignac number, because 1349525505 - 2⁵ = 1349525473 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295644 + ... + 300173.

It is an arithmetic number, because the mean of its divisors is an integer number (135846504).

Almost surely, 2^1349525505 is an apocalyptic number.

1349525505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1349525505 is a deficient number, since it is larger than the sum of its proper divisors (824018559).

1349525505 is a wasteful number, since it uses less digits than its factorization.

1349525505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595976.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 1349525505 is about 36735.8885151836. Note that the first 3 decimals coincide. The cubic root of 1349525505 is about 1105.0799488983.

The spelling of 1349525505 in words is "one billion, three hundred forty-nine million, five hundred twenty-five thousand, five hundred five".