42980953 has 2 divisors, whose sum is σ = 42980954. Its totient is φ = 42980952.

The previous prime is 42980941. The next prime is 42980963. The reversal of 42980953 is 35908924.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26594649 + 16386304 = 5157^2 + 4048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42980953 is a prime.

It is not a weakly prime, because it can be changed into another prime (42980963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21490476 + 21490477.

It is an arithmetic number, because the mean of its divisors is an integer number (21490477).

Almost surely, 2^42980953 is an apocalyptic number.

It is an amenable number.

42980953 is a deficient number, since it is larger than the sum of its proper divisors (1).

42980953 is an equidigital number, since it uses as much as digits as its factorization.

42980953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 42980953 is about 6555.9860433042. The cubic root of 42980953 is about 350.2880703193.

The spelling of 42980953 in words is "forty-two million, nine hundred eighty thousand, nine hundred fifty-three".