12071507 has 8 divisors (see below), whose sum is σ = 14132832. Its totient is φ = 10094400.

The previous prime is 12071503. The next prime is 12071531. The reversal of 12071507 is 70517021.

It is a happy number.

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 12071507 - 2² = 12071503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12071503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20744 + ... + 21317.

It is an arithmetic number, because the mean of its divisors is an integer number (1766604).

Almost surely, 2^12071507 is an apocalyptic number.

12071507 is a deficient number, since it is larger than the sum of its proper divisors (2061325).

12071507 is an equidigital number, since it uses as much as digits as its factorization.

12071507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42109.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 12071507 is about 3474.4074314910. The cubic root of 12071507 is about 229.3966986677.

Adding to 12071507 its reverse (70517021), we get a palindrome (82588528).

The spelling of 12071507 in words is "twelve million, seventy-one thousand, five hundred seven".