27402149 has 2 divisors, whose sum is σ = 27402150. Its totient is φ = 27402148.

The previous prime is 27402119. The next prime is 27402157. The reversal of 27402149 is 94120472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21325924 + 6076225 = 4618^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 27402149 - 2¹⁶ = 27336613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27402119) 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, 13701074 + 13701075.

It is an arithmetic number, because the mean of its divisors is an integer number (13701075).

Almost surely, 2^27402149 is an apocalyptic number.

It is an amenable number.

27402149 is a deficient number, since it is larger than the sum of its proper divisors (1).

27402149 is an equidigital number, since it uses as much as digits as its factorization.

27402149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 27402149 is about 5234.7061999696. The cubic root of 27402149 is about 301.4821065500.

The spelling of 27402149 in words is "twenty-seven million, four hundred two thousand, one hundred forty-nine".