2101401500 has 48 divisors (see below), whose sum is σ = 5006697696. Its totient is φ = 764144000.

The previous prime is 2101401481. The next prime is 2101401541. The reversal of 2101401500 is 51041012.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 185537 + ... + 196536.

It is an arithmetic number, because the mean of its divisors is an integer number (104306202).

Almost surely, 2^2101401500 is an apocalyptic number.

2101401500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101401500 is an abundant number, since it is smaller than the sum of its proper divisors (2905296196).

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

2101401500 is a wasteful number, since it uses less digits than its factorization.

2101401500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382103 (or 382091 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 2101401500 is about 45841.0460177339. The cubic root of 2101401500 is about 1280.8639796845.

Adding to 2101401500 its reverse (51041012), we get a palindrome (2152442512).

The spelling of 2101401500 in words is "two billion, one hundred one million, four hundred one thousand, five hundred".