1201845755 has 32 divisors (see below), whose sum is σ = 1625868288. Its totient is φ = 845353600.

The previous prime is 1201845737. The next prime is 1201845797. The reversal of 1201845755 is 5575481021.

It is not a de Polignac number, because 1201845755 - 2⁶ = 1201845691 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 204062 + ... + 209868.

It is an arithmetic number, because the mean of its divisors is an integer number (50808384).

Almost surely, 2^1201845755 is an apocalyptic number.

1201845755 is a deficient number, since it is larger than the sum of its proper divisors (424022533).

1201845755 is a wasteful number, since it uses less digits than its factorization.

1201845755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947.

The product of its (nonzero) digits is 56000, while the sum is 38.

The square root of 1201845755 is about 34667.6470935078. The cubic root of 1201845755 is about 1063.2031254585.

The spelling of 1201845755 in words is "one billion, two hundred one million, eight hundred forty-five thousand, seven hundred fifty-five".