1201402305 has 12 divisors (see below), whose sum is σ = 2082430740. Its totient is φ = 640747872.

The previous prime is 1201402261. The next prime is 1201402337. The reversal of 1201402305 is 5032041021.

It can be written as a sum of positive squares in 2 ways, for example, as 797271696 + 404130609 = 28236^2 + 20103^2 .

It is not a de Polignac number, because 1201402305 - 2¹⁵ = 1201369537 is a prime.

It is a super-3 number, since 3×1201402305³ (a number of 28 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 13348870 + ... + 13348959.

It is an arithmetic number, because the mean of its divisors is an integer number (173535895).

Almost surely, 2^1201402305 is an apocalyptic number.

1201402305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201402305 is a deficient number, since it is larger than the sum of its proper divisors (881028435).

1201402305 is a wasteful number, since it uses less digits than its factorization.

1201402305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26697840 (or 26697837 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1201402305 is about 34661.2507708536. The cubic root of 1201402305 is about 1063.0723445538.

Adding to 1201402305 its reverse (5032041021), we get a palindrome (6233443326).

The spelling of 1201402305 in words is "one billion, two hundred one million, four hundred two thousand, three hundred five".