1001100145 has 16 divisors (see below), whose sum is σ = 1214136000. Its totient is φ = 792358848.

The previous prime is 1001100137. The next prime is 1001100151. The reversal of 1001100145 is 5410011001.

It is a cyclic number.

It is not a de Polignac number, because 1001100145 - 2³ = 1001100137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685426 + ... + 686884.

It is an arithmetic number, because the mean of its divisors is an integer number (75883500).

Almost surely, 2^1001100145 is an apocalyptic number.

It is an amenable number.

1001100145 is a deficient number, since it is larger than the sum of its proper divisors (213035855).

1001100145 is a wasteful number, since it uses less digits than its factorization.

1001100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1001100145 is about 31640.1666398899. The cubic root of 1001100145 is about 1000.3665806022.

Adding to 1001100145 its reverse (5410011001), we get a palindrome (6411111146).

The spelling of 1001100145 in words is "one billion, one million, one hundred thousand, one hundred forty-five".