145009403 has 16 divisors (see below), whose sum is σ = 181061376. Its totient is φ = 112825440.

The previous prime is 145009393. The next prime is 145009451. The reversal of 145009403 is 304900541.

It is not a de Polignac number, because 145009403 - 2⁶ = 145009339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145009453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83300 + ... + 85022.

It is an arithmetic number, because the mean of its divisors is an integer number (11316336).

Almost surely, 2^145009403 is an apocalyptic number.

145009403 is a deficient number, since it is larger than the sum of its proper divisors (36051973).

145009403 is a wasteful number, since it uses less digits than its factorization.

145009403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 145009403 is about 12041.9850107862. The cubic root of 145009403 is about 525.3701432077.

Adding to 145009403 its reverse (304900541), we get a palindrome (449909944).

The spelling of 145009403 in words is "one hundred forty-five million, nine thousand, four hundred three".