145418123 has 2 divisors, whose sum is σ = 145418124. Its totient is φ = 145418122.

The previous prime is 145418101. The next prime is 145418129. The reversal of 145418123 is 321814541.

It is a strong prime.

It is an emirp because it is prime and its reverse (321814541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145418123 - 2⁶ = 145418059 is a prime.

It is a super-2 number, since 2×145418123² = 42292860993686258, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (145418129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72709061 + 72709062.

It is an arithmetic number, because the mean of its divisors is an integer number (72709062).

Almost surely, 2^145418123 is an apocalyptic number.

145418123 is a deficient number, since it is larger than the sum of its proper divisors (1).

145418123 is an equidigital number, since it uses as much as digits as its factorization.

145418123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 145418123 is about 12058.9436933755. The cubic root of 145418123 is about 525.8632787152.

It can be divided in two parts, 145418 and 123, that added together give a palindrome (145541).

The spelling of 145418123 in words is "one hundred forty-five million, four hundred eighteen thousand, one hundred twenty-three".