101240144 has 10 divisors (see below), whose sum is σ = 196152810. Its totient is φ = 50620064.

The previous prime is 101240143. The next prime is 101240147. The reversal of 101240144 is 441042101.

It can be written as a sum of positive squares in only one way, i.e., 100240144 + 1000000 = 10012^2 + 1000^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101240143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3163739 + ... + 3163770.

It is an arithmetic number, because the mean of its divisors is an integer number (19615281).

Almost surely, 2^101240144 is an apocalyptic number.

It is an amenable number.

101240144 is a deficient number, since it is larger than the sum of its proper divisors (94912666).

101240144 is an equidigital number, since it uses as much as digits as its factorization.

101240144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327517 (or 6327511 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 101240144 is about 10061.8161382526. The cubic root of 101240144 is about 466.0697520030.

Adding to 101240144 its reverse (441042101), we get a palindrome (542282245).

The spelling of 101240144 in words is "one hundred one million, two hundred forty thousand, one hundred forty-four".