405140101 has 8 divisors (see below), whose sum is σ = 429686784. Its totient is φ = 381171120.

The previous prime is 405140069. The next prime is 405140119. The reversal of 405140101 is 101041504.

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 405140101 - 2⁵ = 405140069 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 (405140161) 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 7 ways as a sum of consecutive naturals, for example, 142981 + ... + 145786.

It is an arithmetic number, because the mean of its divisors is an integer number (53710848).

Almost surely, 2^405140101 is an apocalyptic number.

It is an amenable number.

405140101 is a deficient number, since it is larger than the sum of its proper divisors (24546683).

405140101 is a wasteful number, since it uses less digits than its factorization.

405140101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288851.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 405140101 is about 20128.0923338502. The cubic root of 405140101 is about 739.9489257421.

Adding to 405140101 its reverse (101041504), we get a palindrome (506181605).

The spelling of 405140101 in words is "four hundred five million, one hundred forty thousand, one hundred one".