42194653 has 4 divisors (see below), whose sum is σ = 43175968. Its totient is φ = 41213340.

The previous prime is 42194641. The next prime is 42194693. The reversal of 42194653 is 35649124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42194653 - 2¹³ = 42186461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42194693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490593 + ... + 490678.

It is an arithmetic number, because the mean of its divisors is an integer number (10793992).

Almost surely, 2^42194653 is an apocalyptic number.

42194653 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42194653 is a deficient number, since it is larger than the sum of its proper divisors (981315).

42194653 is an equidigital number, since it uses as much as digits as its factorization.

42194653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981314.

The product of its digits is 25920, while the sum is 34.

The square root of 42194653 is about 6495.7411432415. The cubic root of 42194653 is about 348.1388362446.

The spelling of 42194653 in words is "forty-two million, one hundred ninety-four thousand, six hundred fifty-three".