154344423419 has 2 divisors, whose sum is σ = 154344423420. Its totient is φ = 154344423418.

The previous prime is 154344423379. The next prime is 154344423451. The reversal of 154344423419 is 914324443451.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154344423419 is a prime.

It is a super-2 number, since 2×154344423419² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 154344423419.

It is not a weakly prime, because it can be changed into another prime (154344423619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77172211709 + 77172211710.

It is an arithmetic number, because the mean of its divisors is an integer number (77172211710).

Almost surely, 2^154344423419 is an apocalyptic number.

154344423419 is a deficient number, since it is larger than the sum of its proper divisors (1).

154344423419 is an equidigital number, since it uses as much as digits as its factorization.

154344423419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 44.

The spelling of 154344423419 in words is "one hundred fifty-four billion, three hundred forty-four million, four hundred twenty-three thousand, four hundred nineteen".