355145023 has 2 divisors, whose sum is σ = 355145024. Its totient is φ = 355145022.

The previous prime is 355145009. The next prime is 355145069. The reversal of 355145023 is 320541553.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355145023 - 2¹⁷ = 355013951 is a prime.

It is a super-2 number, since 2×355145023² = 252255974723341058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 355144982 and 355145000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355145123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177572511 + 177572512.

It is an arithmetic number, because the mean of its divisors is an integer number (177572512).

Almost surely, 2^355145023 is an apocalyptic number.

355145023 is a deficient number, since it is larger than the sum of its proper divisors (1).

355145023 is an equidigital number, since it uses as much as digits as its factorization.

355145023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 355145023 is about 18845.2917992797. The cubic root of 355145023 is about 708.1662811533.

Adding to 355145023 its reverse (320541553), we get a palindrome (675686576).

The spelling of 355145023 in words is "three hundred fifty-five million, one hundred forty-five thousand, twenty-three".