42194753 has 2 divisors, whose sum is σ = 42194754. Its totient is φ = 42194752.

The previous prime is 42194749. The next prime is 42194771. The reversal of 42194753 is 35749124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21827584 + 20367169 = 4672^2 + 4513^2 .

It is a cyclic number.

It is not a de Polignac number, because 42194753 - 2² = 42194749 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42194743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21097376 + 21097377.

It is an arithmetic number, because the mean of its divisors is an integer number (21097377).

Almost surely, 2^42194753 is an apocalyptic number.

It is an amenable number.

42194753 is a deficient number, since it is larger than the sum of its proper divisors (1).

42194753 is an equidigital number, since it uses as much as digits as its factorization.

42194753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 42194753 is about 6495.7488405880. The cubic root of 42194753 is about 348.1391112704.

The spelling of 42194753 in words is "forty-two million, one hundred ninety-four thousand, seven hundred fifty-three".