12690146 has 16 divisors (see below), whose sum is σ = 21845376. Its totient is φ = 5415936.

The previous prime is 12690121. The next prime is 12690151. The reversal of 12690146 is 64109621.

It is a super-2 number, since 2×12690146² = 322079611002632, which contains 22 as substring.

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, 1835 + ... + 5361.

It is an arithmetic number, because the mean of its divisors is an integer number (1365336).

Almost surely, 2^12690146 is an apocalyptic number.

12690146 is a deficient number, since it is larger than the sum of its proper divisors (9155230).

12690146 is a wasteful number, since it uses less digits than its factorization.

12690146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12690146 is about 3562.3231184158. The cubic root of 12690146 is about 233.2502974378.

Adding to 12690146 its reverse (64109621), we get a palindrome (76799767).

The spelling of 12690146 in words is "twelve million, six hundred ninety thousand, one hundred forty-six".