145003401 has 12 divisors (see below), whose sum is σ = 209909700. Its totient is φ = 96456480.

The previous prime is 145003381. The next prime is 145003427. The reversal of 145003401 is 104300541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22325625 + 122677776 = 4725^2 + 11076^2 .

It is not a de Polignac number, because 145003401 - 2⁷ = 145003273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145003471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13326 + ... + 21623.

It is an arithmetic number, because the mean of its divisors is an integer number (17492475).

Almost surely, 2^145003401 is an apocalyptic number.

It is an amenable number.

145003401 is a deficient number, since it is larger than the sum of its proper divisors (64906299).

145003401 is a wasteful number, since it uses less digits than its factorization.

145003401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35416 (or 35413 counting only the distinct ones).

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

The square root of 145003401 is about 12041.7357968027. The cubic root of 145003401 is about 525.3628946775.

Adding to 145003401 its reverse (104300541), we get a palindrome (249303942).

The spelling of 145003401 in words is "one hundred forty-five million, three thousand, four hundred one".