19414147 has 2 divisors, whose sum is σ = 19414148. Its totient is φ = 19414146.

The previous prime is 19414141. The next prime is 19414151. The reversal of 19414147 is 74141491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19414147 - 2⁷ = 19414019 is a prime.

It is not a weakly prime, because it can be changed into another prime (19414141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9707073 + 9707074.

It is an arithmetic number, because the mean of its divisors is an integer number (9707074).

Almost surely, 2^19414147 is an apocalyptic number.

19414147 is a deficient number, since it is larger than the sum of its proper divisors (1).

19414147 is an equidigital number, since it uses as much as digits as its factorization.

19414147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 19414147 is about 4406.1487718869. The cubic root of 19414147 is about 268.7650366925.

It can be divided in two parts, 194 and 14147, that added together give a palindrome (14341).

The spelling of 19414147 in words is "nineteen million, four hundred fourteen thousand, one hundred forty-seven".