120010005 has 40 divisors (see below), whose sum is σ = 216153432. Its totient is φ = 63700992.

The previous prime is 120009991. The next prime is 120010019. The reversal of 120010005 is 500010021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120009991) and next prime (120010019).

It can be written as a sum of positive squares in 4 ways, for example, as 62583921 + 57426084 = 7911^2 + 7578^2 .

It is not a de Polignac number, because 120010005 - 2¹³ = 120001813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 103509 + ... + 104661.

Almost surely, 2^120010005 is an apocalyptic number.

120010005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120010005 is a deficient number, since it is larger than the sum of its proper divisors (96143427).

120010005 is a wasteful number, since it uses less digits than its factorization.

120010005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 120010005 is about 10954.9078042675. The cubic root of 120010005 is about 493.2561225139.

Adding to 120010005 its reverse (500010021), we get a palindrome (620020026).

The spelling of 120010005 in words is "one hundred twenty million, ten thousand, five".