101040405 has 8 divisors (see below), whose sum is σ = 161664672. Its totient is φ = 53888208.

The previous prime is 101040397. The next prime is 101040413. The reversal of 101040405 is 504040101.

It is an interprime number because it is at equal distance from previous prime (101040397) and next prime (101040413).

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

It is not a de Polignac number, because 101040405 - 2³ = 101040397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 6736027 = 101040405 / (1 + 0 + 1 + 0 + 4 + 0 + 4 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3367999 + ... + 3368028.

It is an arithmetic number, because the mean of its divisors is an integer number (20208084).

Almost surely, 2^101040405 is an apocalyptic number.

101040405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101040405 is a deficient number, since it is larger than the sum of its proper divisors (60624267).

101040405 is an equidigital number, since it uses as much as digits as its factorization.

101040405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736035.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 101040405 is about 10051.8856439973. The cubic root of 101040405 is about 465.7630436460.

Adding to 101040405 its reverse (504040101), we get a palindrome (605080506).

The spelling of 101040405 in words is "one hundred one million, forty thousand, four hundred five".