145510403 has 2 divisors, whose sum is σ = 145510404. Its totient is φ = 145510402.

The previous prime is 145510367. The next prime is 145510423. The reversal of 145510403 is 304015541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145510403 - 2⁸ = 145510147 is a prime.

It is a super-4 number, since 4×145510403⁴ (a number of 34 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (145510423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72755201 + 72755202.

It is an arithmetic number, because the mean of its divisors is an integer number (72755202).

Almost surely, 2^145510403 is an apocalyptic number.

145510403 is a deficient number, since it is larger than the sum of its proper divisors (1).

145510403 is an equidigital number, since it uses as much as digits as its factorization.

145510403 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 145510403 is about 12062.7692923308. The cubic root of 145510403 is about 525.9744899848.

Adding to 145510403 its reverse (304015541), we get a palindrome (449525944).

The spelling of 145510403 in words is "one hundred forty-five million, five hundred ten thousand, four hundred three".