145033421013 has 24 divisors (see below), whose sum is σ = 225720768000. Its totient is φ = 89206544160.

The previous prime is 145033421009. The next prime is 145033421017. The reversal of 145033421013 is 310124330541.

It is a happy number.

145033421013 is a `hidden beast` number, since 14 + 503 + 3 + 42 + 101 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (145033421009) and next prime (145033421017).

It is not a de Polignac number, because 145033421013 - 2² = 145033421009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145033421017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76173 + ... + 543938.

It is an arithmetic number, because the mean of its divisors is an integer number (9405032000).

Almost surely, 2^145033421013 is an apocalyptic number.

145033421013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145033421013 is a deficient number, since it is larger than the sum of its proper divisors (80687346987).

145033421013 is a wasteful number, since it uses less digits than its factorization.

145033421013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622129 (or 622126 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 145033421013 its reverse (310124330541), we get a palindrome (455157751554).

The spelling of 145033421013 in words is "one hundred forty-five billion, thirty-three million, four hundred twenty-one thousand, thirteen".