101422144 has 14 divisors (see below), whose sum is σ = 201259694. Its totient is φ = 50711040.

The previous prime is 101422129. The next prime is 101422147. The reversal of 101422144 is 441224101.

It can be written as a sum of positive squares in only one way, i.e., 86118400 + 15303744 = 9280^2 + 3912^2 .

It is not an unprimeable number, because it can be changed into a prime (101422147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 792297 + ... + 792424.

Almost surely, 2^101422144 is an apocalyptic number.

It is an amenable number.

101422144 is a deficient number, since it is larger than the sum of its proper divisors (99837550).

101422144 is an equidigital number, since it uses as much as digits as its factorization.

101422144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584733 (or 1584723 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 101422144 is about 10070.8561701575. The cubic root of 101422144 is about 466.3488702535.

Adding to 101422144 its reverse (441224101), we get a palindrome (542646245).

The spelling of 101422144 in words is "one hundred one million, four hundred twenty-two thousand, one hundred forty-four".