190401 has 4 divisors (see below), whose sum is σ = 253872. Its totient is φ = 126932.

The previous prime is 190391. The next prime is 190403. The reversal of 190401 is 104091.

190401 is nontrivially palindromic in base 12.

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 190401 - 2⁵ = 190369 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (190403) 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, 31731 + ... + 31736.

It is an arithmetic number, because the mean of its divisors is an integer number (63468).

2¹⁹⁰⁴⁰¹ is an apocalyptic number.

It is an amenable number.

190401 is a deficient number, since it is larger than the sum of its proper divisors (63471).

190401 is an equidigital number, since it uses as much as digits as its factorization.

190401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63470.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 190401 is about 436.3496304570. The cubic root of 190401 is about 57.5293863653.

Adding to 190401 its reverse (104091), we get a palindrome (294492).

The spelling of 190401 in words is "one hundred ninety thousand, four hundred one".