145812103 has 2 divisors, whose sum is σ = 145812104. Its totient is φ = 145812102.

The previous prime is 145812091. The next prime is 145812109. The reversal of 145812103 is 301218541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145812103 - 2⁹ = 145811591 is a prime.

It is a super-2 number, since 2×145812103² = 42522338762565218, which contains 22 as substring.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145812109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72906051 + 72906052.

It is an arithmetic number, because the mean of its divisors is an integer number (72906052).

Almost surely, 2^145812103 is an apocalyptic number.

145812103 is a deficient number, since it is larger than the sum of its proper divisors (1).

145812103 is an equidigital number, since it uses as much as digits as its factorization.

145812103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 145812103 is about 12075.2682371863. The cubic root of 145812103 is about 526.3377560090.

The spelling of 145812103 in words is "one hundred forty-five million, eight hundred twelve thousand, one hundred three".