145603421404 has 36 divisors (see below), whose sum is σ = 297679191264. Its totient is φ = 62133629376.

The previous prime is 145603421371. The next prime is 145603421413. The reversal of 145603421404 is 404124306541.

It is a self number, because there is not a number n which added to its sum of digits gives 145603421404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1548484 + ... + 1639819.

It is an arithmetic number, because the mean of its divisors is an integer number (8268866424).

Almost surely, 2^145603421404 is an apocalyptic number.

145603421404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145603421404 is an abundant number, since it is smaller than the sum of its proper divisors (152075769860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145603421404 is a wasteful number, since it uses less digits than its factorization.

145603421404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188554 (or 3188545 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 145603421404 its reverse (404124306541), we get a palindrome (549727727945).

The spelling of 145603421404 in words is "one hundred forty-five billion, six hundred three million, four hundred twenty-one thousand, four hundred four".