1201400305 has 16 divisors (see below), whose sum is σ = 1734353280. Its totient is φ = 780458112.

The previous prime is 1201400297. The next prime is 1201400309. The reversal of 1201400305 is 5030041021.

It is not a de Polignac number, because 1201400305 - 2³ = 1201400297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201400309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 902644 + ... + 903973.

It is an arithmetic number, because the mean of its divisors is an integer number (108397080).

Almost surely, 2^1201400305 is an apocalyptic number.

It is an amenable number.

1201400305 is a deficient number, since it is larger than the sum of its proper divisors (532952975).

1201400305 is a wasteful number, since it uses less digits than its factorization.

1201400305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806648.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1201400305 is about 34661.2219201805. The cubic root of 1201400305 is about 1063.0717546471.

Adding to 1201400305 its reverse (5030041021), we get a palindrome (6231441326).

The spelling of 1201400305 in words is "one billion, two hundred one million, four hundred thousand, three hundred five".