27370129 has 6 divisors (see below), whose sum is σ = 27565494. Its totient is φ = 27175680.

The previous prime is 27370111. The next prime is 27370139. The reversal of 27370129 is 92107372.

It can be written as a sum of positive squares in 3 ways, for example, as 2169729 + 25200400 = 1473^2 + 5020^2 .

It is not a de Polignac number, because 27370129 - 2¹³ = 27361937 is a prime.

It is a super-2 number, since 2×27370129² = 1498247922953282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27370129.

It is not an unprimeable number, because it can be changed into a prime (27370139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81049 + ... + 81385.

It is an arithmetic number, because the mean of its divisors is an integer number (4594249).

Almost surely, 2^27370129 is an apocalyptic number.

It is an amenable number.

27370129 is a deficient number, since it is larger than the sum of its proper divisors (195365).

27370129 is an frugal number, since it uses more digits than its factorization.

27370129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 27370129 is about 5231.6468726396. The cubic root of 27370129 is about 301.3646313405.

The spelling of 27370129 in words is "twenty-seven million, three hundred seventy thousand, one hundred twenty-nine".