12621051 has 12 divisors (see below), whose sum is σ = 18618912. Its totient is φ = 8234736.

The previous prime is 12621047. The next prime is 12621053. The reversal of 12621051 is 15012621.

12621051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12621051 - 2² = 12621047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12621053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14496 + ... + 15341.

It is an arithmetic number, because the mean of its divisors is an integer number (1551576).

Almost surely, 2^12621051 is an apocalyptic number.

12621051 is a deficient number, since it is larger than the sum of its proper divisors (5997861).

12621051 is a wasteful number, since it uses less digits than its factorization.

12621051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29890 (or 29887 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 12621051 is about 3552.6118560856. The cubic root of 12621051 is about 232.8261949303.

Adding to 12621051 its reverse (15012621), we get a palindrome (27633672).

The spelling of 12621051 in words is "twelve million, six hundred twenty-one thousand, fifty-one".