102040005 has 8 divisors (see below), whose sum is σ = 163264032. Its totient is φ = 54421328.

The previous prime is 102039991. The next prime is 102040027. The reversal of 102040005 is 500040201.

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 102040005 - 2⁷ = 102039877 is a prime.

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, 3401319 + ... + 3401348.

It is an arithmetic number, because the mean of its divisors is an integer number (20408004).

Almost surely, 2^102040005 is an apocalyptic number.

102040005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102040005 is a deficient number, since it is larger than the sum of its proper divisors (61224027).

102040005 is an equidigital number, since it uses as much as digits as its factorization.

102040005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6802675.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 102040005 is about 10101.4852868279. The cubic root of 102040005 is about 467.2939486785.

Adding to 102040005 its reverse (500040201), we get a palindrome (602080206).

The spelling of 102040005 in words is "one hundred two million, forty thousand, five".