42137527 has 2 divisors, whose sum is σ = 42137528. Its totient is φ = 42137526.

The previous prime is 42137507. The next prime is 42137531. The reversal of 42137527 is 72573124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42137527 - 2⁷ = 42137399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42137507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21068763 + 21068764.

It is an arithmetic number, because the mean of its divisors is an integer number (21068764).

Almost surely, 2^42137527 is an apocalyptic number.

42137527 is a deficient number, since it is larger than the sum of its proper divisors (1).

42137527 is an equidigital number, since it uses as much as digits as its factorization.

42137527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 42137527 is about 6491.3424651608. The cubic root of 42137527 is about 347.9816539190.

The spelling of 42137527 in words is "forty-two million, one hundred thirty-seven thousand, five hundred twenty-seven".