101421084 has 24 divisors (see below), whose sum is σ = 237646080. Its totient is φ = 33664624.

The previous prime is 101421083. The next prime is 101421097. The reversal of 101421084 is 480124101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 101421084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14814 + ... + 20549.

It is an arithmetic number, because the mean of its divisors is an integer number (9901920).

Almost surely, 2^101421084 is an apocalyptic number.

It is an amenable number.

101421084 is an abundant number, since it is smaller than the sum of its proper divisors (136224996).

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

101421084 is a wasteful number, since it uses less digits than its factorization.

101421084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35609 (or 35607 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 101421084 is about 10070.8035429155. The cubic root of 101421084 is about 466.3472455869.

Adding to 101421084 its reverse (480124101), we get a palindrome (581545185).

The spelling of 101421084 in words is "one hundred one million, four hundred twenty-one thousand, eighty-four".