190106401 has 2 divisors, whose sum is σ = 190106402. Its totient is φ = 190106400.

The previous prime is 190106387. The next prime is 190106429. The reversal of 190106401 is 104601091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178917376 + 11189025 = 13376^2 + 3345^2 .

It is a cyclic number.

It is not a de Polignac number, because 190106401 - 2⁵ = 190106369 is a prime.

It is a super-2 number, since 2×190106401² = 72280887402345602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190106471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95053200 + 95053201.

It is an arithmetic number, because the mean of its divisors is an integer number (95053201).

Almost surely, 2^190106401 is an apocalyptic number.

It is an amenable number.

190106401 is a deficient number, since it is larger than the sum of its proper divisors (1).

190106401 is an equidigital number, since it uses as much as digits as its factorization.

190106401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 190106401 is about 13787.9077818210. The cubic root of 190106401 is about 574.9970016227.

Adding to 190106401 its reverse (104601091), we get a palindrome (294707492).

The spelling of 190106401 in words is "one hundred ninety million, one hundred six thousand, four hundred one".