19013147 has 2 divisors, whose sum is σ = 19013148. Its totient is φ = 19013146.

The previous prime is 19013131. The next prime is 19013179. The reversal of 19013147 is 74131091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19013147 - 2⁴ = 19013131 is a prime.

It is a super-2 number, since 2×19013147² = 722999517687218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19013107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9506573 + 9506574.

It is an arithmetic number, because the mean of its divisors is an integer number (9506574).

Almost surely, 2^19013147 is an apocalyptic number.

19013147 is a deficient number, since it is larger than the sum of its proper divisors (1).

19013147 is an equidigital number, since it uses as much as digits as its factorization.

19013147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 19013147 is about 4360.4067470822. The cubic root of 19013147 is about 266.9016971320.

The spelling of 19013147 in words is "nineteen million, thirteen thousand, one hundred forty-seven".