27430149 has 4 divisors (see below), whose sum is σ = 36573536. Its totient is φ = 18286764.

The previous prime is 27430147. The next prime is 27430153. The reversal of 27430149 is 94103472.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27430149 - 2¹ = 27430147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27430141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4571689 + ... + 4571694.

It is an arithmetic number, because the mean of its divisors is an integer number (9143384).

Almost surely, 2^27430149 is an apocalyptic number.

It is an amenable number.

27430149 is a deficient number, since it is larger than the sum of its proper divisors (9143387).

27430149 is an equidigital number, since it uses as much as digits as its factorization.

27430149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143386.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 27430149 is about 5237.3799747584. The cubic root of 27430149 is about 301.5847581753.

The spelling of 27430149 in words is "twenty-seven million, four hundred thirty thousand, one hundred forty-nine".