340144523 has 2 divisors, whose sum is σ = 340144524. Its totient is φ = 340144522.

The previous prime is 340144507. The next prime is 340144529. The reversal of 340144523 is 325441043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340144523 - 2⁴ = 340144507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340144492 and 340144501.

It is not a weakly prime, because it can be changed into another prime (340144529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170072261 + 170072262.

It is an arithmetic number, because the mean of its divisors is an integer number (170072262).

Almost surely, 2^340144523 is an apocalyptic number.

340144523 is a deficient number, since it is larger than the sum of its proper divisors (1).

340144523 is an equidigital number, since it uses as much as digits as its factorization.

340144523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 340144523 is about 18443.0074282911. The cubic root of 340144523 is about 698.0520831244.

Adding to 340144523 its reverse (325441043), we get a palindrome (665585566).

The spelling of 340144523 in words is "three hundred forty million, one hundred forty-four thousand, five hundred twenty-three".