1201007505 has 16 divisors (see below), whose sum is σ = 1938620160. Its totient is φ = 634867968.

The previous prime is 1201007473. The next prime is 1201007527. The reversal of 1201007505 is 5057001021.

It is not a de Polignac number, because 1201007505 - 2⁵ = 1201007473 is a prime.

It is an unprimeable number.

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, 352585 + ... + 355974.

It is an arithmetic number, because the mean of its divisors is an integer number (121163760).

Almost surely, 2^1201007505 is an apocalyptic number.

1201007505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201007505 is a deficient number, since it is larger than the sum of its proper divisors (737612655).

1201007505 is a wasteful number, since it uses less digits than its factorization.

1201007505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708680.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 1201007505 is about 34655.5551823946. Note that the first 3 decimals coincide. The cubic root of 1201007505 is about 1062.9558842746.

Adding to 1201007505 its reverse (5057001021), we get a palindrome (6258008526).

The spelling of 1201007505 in words is "one billion, two hundred one million, seven thousand, five hundred five".