145504103 has 2 divisors, whose sum is σ = 145504104. Its totient is φ = 145504102.

The previous prime is 145504067. The next prime is 145504159. The reversal of 145504103 is 301405541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145504103 - 2⁸ = 145503847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145504193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72752051 + 72752052.

It is an arithmetic number, because the mean of its divisors is an integer number (72752052).

Almost surely, 2^145504103 is an apocalyptic number.

145504103 is a deficient number, since it is larger than the sum of its proper divisors (1).

145504103 is an equidigital number, since it uses as much as digits as its factorization.

145504103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 145504103 is about 12062.5081554377. The cubic root of 145504103 is about 525.9668990336.

Adding to 145504103 its reverse (301405541), we get a palindrome (446909644).

The spelling of 145504103 in words is "one hundred forty-five million, five hundred four thousand, one hundred three".