12538954 has 4 divisors (see below), whose sum is σ = 18808434. Its totient is φ = 6269476.

The previous prime is 12538949. The next prime is 12538957. The reversal of 12538954 is 45983521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12439729 + 99225 = 3527^2 + 315^2 .

It is not an unprimeable number, because it can be changed into a prime (12538957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3134737 + ... + 3134740.

Almost surely, 2^12538954 is an apocalyptic number.

12538954 is a deficient number, since it is larger than the sum of its proper divisors (6269480).

12538954 is an equidigital number, since it uses as much as digits as its factorization.

12538954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269479.

The product of its digits is 43200, while the sum is 37.

The square root of 12538954 is about 3541.0385482228. The cubic root of 12538954 is about 232.3202696232.

The spelling of 12538954 in words is "twelve million, five hundred thirty-eight thousand, nine hundred fifty-four".