420141193 has 4 divisors (see below), whose sum is σ = 420576640. Its totient is φ = 419705748.

The previous prime is 420141191. The next prime is 420141203. The reversal of 420141193 is 391141024.

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 420141193 - 2¹ = 420141191 is a prime.

It is a super-3 number, since 3×420141193³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (420141191) 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, 216273 + ... + 218206.

It is an arithmetic number, because the mean of its divisors is an integer number (105144160).

Almost surely, 2^420141193 is an apocalyptic number.

It is an amenable number.

420141193 is a deficient number, since it is larger than the sum of its proper divisors (435447).

420141193 is an equidigital number, since it uses as much as digits as its factorization.

420141193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435446.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 420141193 is about 20497.3459989336. The cubic root of 420141193 is about 748.9711480785.

The spelling of 420141193 in words is "four hundred twenty million, one hundred forty-one thousand, one hundred ninety-three".