19453141 has 2 divisors, whose sum is σ = 19453142. Its totient is φ = 19453140.

The previous prime is 19453129. The next prime is 19453163. The reversal of 19453141 is 14135491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19448100 + 5041 = 4410^2 + 71^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19453141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19423141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9726570 + 9726571.

It is an arithmetic number, because the mean of its divisors is an integer number (9726571).

Almost surely, 2^19453141 is an apocalyptic number.

It is an amenable number.

19453141 is a deficient number, since it is larger than the sum of its proper divisors (1).

19453141 is an equidigital number, since it uses as much as digits as its factorization.

19453141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 19453141 is about 4410.5715049186. The cubic root of 19453141 is about 268.9448577104.

It can be divided in two parts, 194 and 53141, that added together give a palindrome (53335).

The spelling of 19453141 in words is "nineteen million, four hundred fifty-three thousand, one hundred forty-one".