101443442 has 4 divisors (see below), whose sum is σ = 152165166. Its totient is φ = 50721720.

The previous prime is 101443429. The next prime is 101443453. The reversal of 101443442 is 244344101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100982401 + 461041 = 10049^2 + 679^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25360859 + ... + 25360862.

Almost surely, 2^101443442 is an apocalyptic number.

101443442 is a deficient number, since it is larger than the sum of its proper divisors (50721724).

101443442 is an equidigital number, since it uses as much as digits as its factorization.

101443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50721723.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 101443442 is about 10071.9135222658. The cubic root of 101443442 is about 466.3815113931.

Adding to 101443442 its reverse (244344101), we get a palindrome (345787543).

The spelling of 101443442 in words is "one hundred one million, four hundred forty-three thousand, four hundred forty-two".