27145131 has 16 divisors (see below), whose sum is σ = 40323360. Its totient is φ = 16128000.

The previous prime is 27145103. The next prime is 27145147. The reversal of 27145131 is 13154172.

It is not a de Polignac number, because 27145131 - 2⁵ = 27145099 is a prime.

It is a super-2 number, since 2×27145131² = 1473716274014322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27145031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10870 + ... + 13131.

It is an arithmetic number, because the mean of its divisors is an integer number (2520210).

Almost surely, 2^27145131 is an apocalyptic number.

27145131 is a deficient number, since it is larger than the sum of its proper divisors (13178229).

27145131 is a wasteful number, since it uses less digits than its factorization.

27145131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24046.

The product of its digits is 840, while the sum is 24.

The square root of 27145131 is about 5210.0989433983. The cubic root of 27145131 is about 300.5365619875.

The spelling of 27145131 in words is "twenty-seven million, one hundred forty-five thousand, one hundred thirty-one".