101422142 has 12 divisors (see below), whose sum is σ = 157163616. Its totient is φ = 49036860.

The previous prime is 101422129. The next prime is 101422147. The reversal of 101422142 is 241224101.

It is a self number, because there is not a number n which added to its sum of digits gives 101422142.

It is a congruent number.

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

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 5 ways as a sum of consecutive naturals, for example, 78659 + ... + 79937.

It is an arithmetic number, because the mean of its divisors is an integer number (13096968).

Almost surely, 2^101422142 is an apocalyptic number.

101422142 is a deficient number, since it is larger than the sum of its proper divisors (55741474).

101422142 is an frugal number, since it uses more digits than its factorization.

101422142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 101422142 is about 10070.8560708611. The cubic root of 101422142 is about 466.3488671881.

Adding to 101422142 its reverse (241224101), we get a palindrome (342646243).

The spelling of 101422142 in words is "one hundred one million, four hundred twenty-two thousand, one hundred forty-two".