27542131 has 2 divisors, whose sum is σ = 27542132. Its totient is φ = 27542130.

The previous prime is 27542111. The next prime is 27542147. The reversal of 27542131 is 13124572.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27542131 is a prime.

It is a super-2 number, since 2×27542131² = 1517137960042322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27542096 and 27542105.

It is not a weakly prime, because it can be changed into another prime (27542111) 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, 13771065 + 13771066.

It is an arithmetic number, because the mean of its divisors is an integer number (13771066).

Almost surely, 2^27542131 is an apocalyptic number.

27542131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27542131 is an equidigital number, since it uses as much as digits as its factorization.

27542131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 27542131 is about 5248.0597367027. The cubic root of 27542131 is about 301.9946017485.

The spelling of 27542131 in words is "twenty-seven million, five hundred forty-two thousand, one hundred thirty-one".