42741497 has 2 divisors, whose sum is σ = 42741498. Its totient is φ = 42741496.

The previous prime is 42741487. The next prime is 42741499. The reversal of 42741497 is 79414724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42719296 + 22201 = 6536^2 + 149^2 .

It is a cyclic number.

It is not a de Polignac number, because 42741497 - 2⁴ = 42741481 is a prime.

Together with 42741499, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42741497.

It is not a weakly prime, because it can be changed into another prime (42741499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21370748 + 21370749.

It is an arithmetic number, because the mean of its divisors is an integer number (21370749).

Almost surely, 2^42741497 is an apocalyptic number.

It is an amenable number.

42741497 is a deficient number, since it is larger than the sum of its proper divisors (1).

42741497 is an equidigital number, since it uses as much as digits as its factorization.

42741497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 42741497 is about 6537.6981423128. The cubic root of 42741497 is about 349.6363488267.

The spelling of 42741497 in words is "forty-two million, seven hundred forty-one thousand, four hundred ninety-seven".