27074145 has 64 divisors (see below), whose sum is σ = 53544960. Its totient is φ = 11404800.

The previous prime is 27074123. The next prime is 27074147. The reversal of 27074145 is 54147072.

It is not a de Polignac number, because 27074145 - 2¹² = 27070049 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (27074147) 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 in 63 ways as a sum of consecutive naturals, for example, 81630 + ... + 81960.

It is an arithmetic number, because the mean of its divisors is an integer number (836640).

Almost surely, 2^27074145 is an apocalyptic number.

It is an amenable number.

27074145 is a deficient number, since it is larger than the sum of its proper divisors (26470815).

27074145 is a wasteful number, since it uses less digits than its factorization.

27074145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 27074145 is about 5203.2821372668. The cubic root of 27074145 is about 300.2743601230.

The spelling of 27074145 in words is "twenty-seven million, seventy-four thousand, one hundred forty-five".