1201145106 has 32 divisors (see below), whose sum is σ = 2747622528. Its totient is φ = 342915840.

The previous prime is 1201145089. The next prime is 1201145111. The reversal of 1201145106 is 6015411021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46656 + ... + 67668.

It is an arithmetic number, because the mean of its divisors is an integer number (85863204).

Almost surely, 2^1201145106 is an apocalyptic number.

1201145106 is an abundant number, since it is smaller than the sum of its proper divisors (1546477422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201145106 is a wasteful number, since it uses less digits than its factorization.

1201145106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22386.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1201145106 is about 34657.5403916666. The cubic root of 1201145106 is about 1062.9964774728.

Adding to 1201145106 its reverse (6015411021), we get a palindrome (7216556127).

The spelling of 1201145106 in words is "one billion, two hundred one million, one hundred forty-five thousand, one hundred six".