101142442 has 8 divisors (see below), whose sum is σ = 152821476. Its totient is φ = 50201952.

The previous prime is 101142439. The next prime is 101142443. The reversal of 101142442 is 244241101.

It can be written as a sum of positive squares in 2 ways, for example, as 100180081 + 962361 = 10009^2 + 981^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101142443) 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, 184293 + ... + 184840.

Almost surely, 2^101142442 is an apocalyptic number.

101142442 is a deficient number, since it is larger than the sum of its proper divisors (51679034).

101142442 is a wasteful number, since it uses less digits than its factorization.

101142442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369272.

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

The square root of 101142442 is about 10056.9598786114. The cubic root of 101142442 is about 465.9197765712.

Adding to 101142442 its reverse (244241101), we get a palindrome (345383543).

The spelling of 101142442 in words is "one hundred one million, one hundred forty-two thousand, four hundred forty-two".