145100403 has 24 divisors (see below), whose sum is σ = 248405248. Its totient is φ = 82913544.

The previous prime is 145100393. The next prime is 145100407. The reversal of 145100403 is 304001541.

It is a happy number.

It is not a de Polignac number, because 145100403 - 2¹² = 145096307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145100407) 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 in 23 ways as a sum of consecutive naturals, for example, 40951 + ... + 44352.

Almost surely, 2^145100403 is an apocalyptic number.

145100403 is a deficient number, since it is larger than the sum of its proper divisors (103304845).

145100403 is an frugal number, since it uses more digits than its factorization.

145100403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85325 (or 85313 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 145100403 is about 12045.7628650078. The cubic root of 145100403 is about 525.4800181188.

Adding to 145100403 its reverse (304001541), we get a palindrome (449101944).

The spelling of 145100403 in words is "one hundred forty-five million, one hundred thousand, four hundred three".