12690954 has 12 divisors (see below), whose sum is σ = 27497106. Its totient is φ = 4230312.

The previous prime is 12690943. The next prime is 12690961. The reversal of 12690954 is 45909621.

It can be written as a sum of positive squares in only one way, i.e., 7144929 + 5546025 = 2673^2 + 2355^2 .

It is a super-2 number, since 2×12690954² = 322120626860232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352509 + ... + 352544.

Almost surely, 2^12690954 is an apocalyptic number.

12690954 is an abundant number, since it is smaller than the sum of its proper divisors (14806152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12690954 is a wasteful number, since it uses less digits than its factorization.

12690954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705061 (or 705058 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 12690954 is about 3562.4365257503. The cubic root of 12690954 is about 233.2552477943.

The spelling of 12690954 in words is "twelve million, six hundred ninety thousand, nine hundred fifty-four".