1200505315 has 16 divisors (see below), whose sum is σ = 1514724480. Its totient is φ = 912078720.

The previous prime is 1200505289. The next prime is 1200505321. The reversal of 1200505315 is 5135050021.

It is not a de Polignac number, because 1200505315 - 2⁵ = 1200505283 is a prime.

It is a super-2 number, since 2×1200505315² = 2882426022686498450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59019 + ... + 76708.

It is an arithmetic number, because the mean of its divisors is an integer number (94670280).

Almost surely, 2^1200505315 is an apocalyptic number.

1200505315 is a deficient number, since it is larger than the sum of its proper divisors (314219165).

1200505315 is a wasteful number, since it uses less digits than its factorization.

1200505315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135822.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1200505315 is about 34648.3089774956. The cubic root of 1200505315 is about 1062.8077086158.

Adding to 1200505315 its reverse (5135050021), we get a palindrome (6335555336).

The spelling of 1200505315 in words is "one billion, two hundred million, five hundred five thousand, three hundred fifteen".