101442142 has 8 divisors (see below), whose sum is σ = 152816976. Its totient is φ = 50503152.

The previous prime is 101442119. The next prime is 101442149. The reversal of 101442142 is 241244101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101442149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108378 + ... + 109309.

It is an arithmetic number, because the mean of its divisors is an integer number (19102122).

Almost surely, 2^101442142 is an apocalyptic number.

101442142 is a deficient number, since it is larger than the sum of its proper divisors (51374834).

101442142 is a wasteful number, since it uses less digits than its factorization.

101442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217922.

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

The square root of 101442142 is about 10071.8489861594. The cubic root of 101442142 is about 466.3795191547.

Adding to 101442142 its reverse (241244101), we get a palindrome (342686243).

The spelling of 101442142 in words is "one hundred one million, four hundred forty-two thousand, one hundred forty-two".