145551445133 has 4 divisors (see below), whose sum is σ = 145566580128. Its totient is φ = 145536310140.

The previous prime is 145551445111. The next prime is 145551445139. The reversal of 145551445133 is 331544155541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145551445133 - 2⁶ = 145551445069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145551445139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7553063 + ... + 7572308.

It is an arithmetic number, because the mean of its divisors is an integer number (36391645032).

Almost surely, 2^145551445133 is an apocalyptic number.

It is an amenable number.

145551445133 is a deficient number, since it is larger than the sum of its proper divisors (15134995).

145551445133 is an equidigital number, since it uses as much as digits as its factorization.

145551445133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15134994.

The product of its digits is 360000, while the sum is 41.

The spelling of 145551445133 in words is "one hundred forty-five billion, five hundred fifty-one million, four hundred forty-five thousand, one hundred thirty-three".