154133219 has 2 divisors, whose sum is σ = 154133220. Its totient is φ = 154133218.

The previous prime is 154133201. The next prime is 154133249. The reversal of 154133219 is 912331451.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154133219 is a prime.

It is a super-2 number, since 2×154133219² = 47514098398603922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 154133191 and 154133200.

It is not a weakly prime, because it can be changed into another prime (154133249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77066609 + 77066610.

It is an arithmetic number, because the mean of its divisors is an integer number (77066610).

Almost surely, 2^154133219 is an apocalyptic number.

154133219 is a deficient number, since it is larger than the sum of its proper divisors (1).

154133219 is an equidigital number, since it uses as much as digits as its factorization.

154133219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 154133219 is about 12415.0400321545. The cubic root of 154133219 is about 536.1653567844.

The spelling of 154133219 in words is "one hundred fifty-four million, one hundred thirty-three thousand, two hundred nineteen".