27145103 has 2 divisors, whose sum is σ = 27145104. Its totient is φ = 27145102.

The previous prime is 27145099. The next prime is 27145147. The reversal of 27145103 is 30154172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27145103 - 2² = 27145099 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27145163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572551 + 13572552.

It is an arithmetic number, because the mean of its divisors is an integer number (13572552).

Almost surely, 2^27145103 is an apocalyptic number.

27145103 is a deficient number, since it is larger than the sum of its proper divisors (1).

27145103 is an equidigital number, since it uses as much as digits as its factorization.

27145103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 27145103 is about 5210.0962563085. The cubic root of 27145103 is about 300.5364586538.

Adding to 27145103 its reverse (30154172), we get a palindrome (57299275).

The spelling of 27145103 in words is "twenty-seven million, one hundred forty-five thousand, one hundred three".