42177313 has 2 divisors, whose sum is σ = 42177314. Its totient is φ = 42177312.

The previous prime is 42177301. The next prime is 42177319. The reversal of 42177313 is 31377124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38044224 + 4133089 = 6168^2 + 2033^2 .

It is a cyclic number.

It is not a de Polignac number, because 42177313 - 2¹⁷ = 42046241 is a prime.

It is not a weakly prime, because it can be changed into another prime (42177319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21088656 + 21088657.

It is an arithmetic number, because the mean of its divisors is an integer number (21088657).

Almost surely, 2^42177313 is an apocalyptic number.

It is an amenable number.

42177313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42177313 is an equidigital number, since it uses as much as digits as its factorization.

42177313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 28.

The square root of 42177313 is about 6494.4062854121. The cubic root of 42177313 is about 348.0911401969.

The spelling of 42177313 in words is "forty-two million, one hundred seventy-seven thousand, three hundred thirteen".