1201087305 has 64 divisors (see below), whose sum is σ = 2351462400. Its totient is φ = 576826560.

The previous prime is 1201087291. The next prime is 1201087331. The reversal of 1201087305 is 5037801021.

It is not a de Polignac number, because 1201087305 - 2¹⁵ = 1201054537 is a prime.

It is a super-2 number, since 2×1201087305² = 2885221428464326050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 155116 + ... + 162674.

It is an arithmetic number, because the mean of its divisors is an integer number (36741600).

Almost surely, 2^1201087305 is an apocalyptic number.

1201087305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201087305 is a deficient number, since it is larger than the sum of its proper divisors (1150375095).

1201087305 is a wasteful number, since it uses less digits than its factorization.

1201087305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7691 (or 7685 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1201087305 is about 34656.7064938375. The cubic root of 1201087305 is about 1062.9794261760.

Adding to 1201087305 its reverse (5037801021), we get a palindrome (6238888326).

The spelling of 1201087305 in words is "one billion, two hundred one million, eighty-seven thousand, three hundred five".