42177497 has 2 divisors, whose sum is σ = 42177498. Its totient is φ = 42177496.

The previous prime is 42177491. The next prime is 42177523. The reversal of 42177497 is 79477124.

42177497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37319881 + 4857616 = 6109^2 + 2204^2 .

It is a cyclic number.

It is not a de Polignac number, because 42177497 - 2⁶ = 42177433 is a prime.

It is not a weakly prime, because it can be changed into another prime (42177491) 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 as a sum of consecutive naturals, namely, 21088748 + 21088749.

It is an arithmetic number, because the mean of its divisors is an integer number (21088749).

Almost surely, 2^42177497 is an apocalyptic number.

It is an amenable number.

42177497 is a deficient number, since it is larger than the sum of its proper divisors (1).

42177497 is an equidigital number, since it uses as much as digits as its factorization.

42177497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 41.

The square root of 42177497 is about 6494.4204514337. The cubic root of 42177497 is about 348.0916463828.

The spelling of 42177497 in words is "forty-two million, one hundred seventy-seven thousand, four hundred ninety-seven".