27149506 has 4 divisors (see below), whose sum is σ = 40724262. Its totient is φ = 13574752.

The previous prime is 27149501. The next prime is 27149509. The reversal of 27149506 is 60594172.

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., 25351225 + 1798281 = 5035^2 + 1341^2 .

It is a super-4 number, since 4×27149506⁴ (a number of 31 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (27149501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6787375 + ... + 6787378.

Almost surely, 2^27149506 is an apocalyptic number.

27149506 is a deficient number, since it is larger than the sum of its proper divisors (13574756).

27149506 is a wasteful number, since it uses less digits than its factorization.

27149506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13574755.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 27149506 is about 5210.5187841519. The cubic root of 27149506 is about 300.5527070171.

The spelling of 27149506 in words is "twenty-seven million, one hundred forty-nine thousand, five hundred six".