2100450154 has 16 divisors (see below), whose sum is σ = 3517034400. Its totient is φ = 932546160.

The previous prime is 2100450127. The next prime is 2100450179. The reversal of 2100450154 is 4510540012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109229 + ... + 1111120.

It is an arithmetic number, because the mean of its divisors is an integer number (219814650).

Almost surely, 2^2100450154 is an apocalyptic number.

2100450154 is a deficient number, since it is larger than the sum of its proper divisors (1416584246).

2100450154 is a wasteful number, since it uses less digits than its factorization.

2100450154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220405.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2100450154 is about 45830.6682691841. The cubic root of 2100450154 is about 1280.6706596936.

Adding to 2100450154 its reverse (4510540012), we get a palindrome (6610990166).

It can be divided in two parts, 2100 and 450154, that added together give a palindrome (452254).

The spelling of 2100450154 in words is "two billion, one hundred million, four hundred fifty thousand, one hundred fifty-four".