420000095191 has 4 divisors (see below), whose sum is σ = 420248177272. Its totient is φ = 419752013112.

The previous prime is 420000095189. The next prime is 420000095219. The reversal of 420000095191 is 191590000024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420000095191 - 2¹ = 420000095189 is a prime.

It is a super-2 number, since 2×420000095191² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420000095171) 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, 124038501 + ... + 124041886.

It is an arithmetic number, because the mean of its divisors is an integer number (105062044318).

Almost surely, 2^420000095191 is an apocalyptic number.

420000095191 is a deficient number, since it is larger than the sum of its proper divisors (248082081).

420000095191 is a wasteful number, since it uses less digits than its factorization.

420000095191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248082080.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 420000095191 in words is "four hundred twenty billion, ninety-five thousand, one hundred ninety-one".