19162147 has 2 divisors, whose sum is σ = 19162148. Its totient is φ = 19162146.

The previous prime is 19162063. The next prime is 19162159. The reversal of 19162147 is 74126191.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19162147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19162547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9581073 + 9581074.

It is an arithmetic number, because the mean of its divisors is an integer number (9581074).

Almost surely, 2^19162147 is an apocalyptic number.

19162147 is a deficient number, since it is larger than the sum of its proper divisors (1).

19162147 is an equidigital number, since it uses as much as digits as its factorization.

19162147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 19162147 is about 4377.4589661126. The cubic root of 19162147 is about 267.5970917242.

The spelling of 19162147 in words is "nineteen million, one hundred sixty-two thousand, one hundred forty-seven".