101244145 has 8 divisors (see below), whose sum is σ = 124318656. Its totient is φ = 79111536.

The previous prime is 101244139. The next prime is 101244161. The reversal of 101244145 is 541442101.

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

It is a cyclic number.

It is not a de Polignac number, because 101244145 - 2¹⁵ = 101211377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 235237 + ... + 235666.

It is an arithmetic number, because the mean of its divisors is an integer number (15539832).

Almost surely, 2^101244145 is an apocalyptic number.

It is an amenable number.

101244145 is a deficient number, since it is larger than the sum of its proper divisors (23074511).

101244145 is an equidigital number, since it uses as much as digits as its factorization.

101244145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470951.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 101244145 is about 10062.0149572538. The cubic root of 101244145 is about 466.0758915983.

Adding to 101244145 its reverse (541442101), we get a palindrome (642686246).

The spelling of 101244145 in words is "one hundred one million, two hundred forty-four thousand, one hundred forty-five".