101042445 has 16 divisors (see below), whose sum is σ = 184763520. Its totient is φ = 46190784.

The previous prime is 101042429. The next prime is 101042471. The reversal of 101042445 is 544240101.

It is a happy number.

It is not a de Polignac number, because 101042445 - 2⁴ = 101042429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481050 + ... + 481259.

It is an arithmetic number, because the mean of its divisors is an integer number (11547720).

Almost surely, 2^101042445 is an apocalyptic number.

101042445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101042445 is a deficient number, since it is larger than the sum of its proper divisors (83721075).

101042445 is an equidigital number, since it uses as much as digits as its factorization.

101042445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962324.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 101042445 is about 10051.9871169834. The cubic root of 101042445 is about 465.7661782013.

Adding to 101042445 its reverse (544240101), we get a palindrome (645282546).

The spelling of 101042445 in words is "one hundred one million, forty-two thousand, four hundred forty-five".