1201906851 has 32 divisors (see below), whose sum is σ = 1733746176. Its totient is φ = 737856000.

The previous prime is 1201906847. The next prime is 1201906879. The reversal of 1201906851 is 1586091021.

It is not a de Polignac number, because 1201906851 - 2² = 1201906847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201906751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 655506 + ... + 657336.

It is an arithmetic number, because the mean of its divisors is an integer number (54179568).

Almost surely, 2^1201906851 is an apocalyptic number.

1201906851 is a deficient number, since it is larger than the sum of its proper divisors (531839325).

1201906851 is a wasteful number, since it uses less digits than its factorization.

1201906851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 1201906851 is about 34668.5282496964. The cubic root of 1201906851 is about 1063.2211411806.

Adding to 1201906851 its reverse (1586091021), we get a palindrome (2787997872).

The spelling of 1201906851 in words is "one billion, two hundred one million, nine hundred six thousand, eight hundred fifty-one".