19148147 has 2 divisors, whose sum is σ = 19148148. Its totient is φ = 19148146.

The previous prime is 19148123. The next prime is 19148161. The reversal of 19148147 is 74184191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19148147 - 2¹⁸ = 18886003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19148117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9574073 + 9574074.

It is an arithmetic number, because the mean of its divisors is an integer number (9574074).

Almost surely, 2^19148147 is an apocalyptic number.

19148147 is a deficient number, since it is larger than the sum of its proper divisors (1).

19148147 is an equidigital number, since it uses as much as digits as its factorization.

19148147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 19148147 is about 4375.8595727011. The cubic root of 19148147 is about 267.5319064047.

The spelling of 19148147 in words is "nineteen million, one hundred forty-eight thousand, one hundred forty-seven".