101440007 has 4 divisors (see below), whose sum is σ = 101496096. Its totient is φ = 101383920.

The previous prime is 101439983. The next prime is 101440013. The reversal of 101440007 is 700044101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101440007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101440067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25238 + ... + 28979.

It is an arithmetic number, because the mean of its divisors is an integer number (25374024).

Almost surely, 2^101440007 is an apocalyptic number.

101440007 is a deficient number, since it is larger than the sum of its proper divisors (56089).

101440007 is an equidigital number, since it uses as much as digits as its factorization.

101440007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56088.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 101440007 is about 10071.7429971182. The cubic root of 101440007 is about 466.3762472494.

Adding to 101440007 its reverse (700044101), we get a palindrome (801484108).

The spelling of 101440007 in words is "one hundred one million, four hundred forty thousand, seven".