101440134 has 32 divisors (see below), whose sum is σ = 225792000. Its totient is φ = 33757992.

The previous prime is 101440123. The next prime is 101440159. The reversal of 101440134 is 431044101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44187 + ... + 46425.

It is an arithmetic number, because the mean of its divisors is an integer number (7056000).

Almost surely, 2^101440134 is an apocalyptic number.

101440134 is an abundant number, since it is smaller than the sum of its proper divisors (124351866).

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

101440134 is a wasteful number, since it uses less digits than its factorization.

101440134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089 (or 3083 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 101440134 is about 10071.7493018840. The cubic root of 101440134 is about 466.3764418792.

Adding to 101440134 its reverse (431044101), we get a palindrome (532484235).

The spelling of 101440134 in words is "one hundred one million, four hundred forty thousand, one hundred thirty-four".