42602149 has 2 divisors, whose sum is σ = 42602150. Its totient is φ = 42602148.

The previous prime is 42602057. The next prime is 42602159. The reversal of 42602149 is 94120624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39564100 + 3038049 = 6290^2 + 1743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42602149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42602159) 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, 21301074 + 21301075.

It is an arithmetic number, because the mean of its divisors is an integer number (21301075).

Almost surely, 2^42602149 is an apocalyptic number.

It is an amenable number.

42602149 is a deficient number, since it is larger than the sum of its proper divisors (1).

42602149 is an equidigital number, since it uses as much as digits as its factorization.

42602149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 42602149 is about 6527.0321739670. The cubic root of 42602149 is about 349.2559677516.

The spelling of 42602149 in words is "forty-two million, six hundred two thousand, one hundred forty-nine".