1240144101 has 40 divisors (see below), whose sum is σ = 2241771840. Its totient is φ = 666963072.

The previous prime is 1240143973. The next prime is 1240144109. The reversal of 1240144101 is 1014410421.

1240144101 is a `hidden beast` number, since 1 + 240 + 14 + 410 + 1 = 666.

It is not a de Polignac number, because 1240144101 - 2⁷ = 1240143973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240144109) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54691 + ... + 73968.

It is an arithmetic number, because the mean of its divisors is an integer number (56044296).

Almost surely, 2^1240144101 is an apocalyptic number.

It is an amenable number.

1240144101 is a deficient number, since it is larger than the sum of its proper divisors (1001627739).

1240144101 is a wasteful number, since it uses less digits than its factorization.

1240144101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128695 (or 128686 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1240144101 is about 35215.6797605839. The cubic root of 1240144101 is about 1074.3786857873.

Adding to 1240144101 its reverse (1014410421), we get a palindrome (2254554522).

The spelling of 1240144101 in words is "one billion, two hundred forty million, one hundred forty-four thousand, one hundred one".