145254510133 has 4 divisors (see below), whose sum is σ = 153798893100. Its totient is φ = 136710127168.

The previous prime is 145254510131. The next prime is 145254510139. The reversal of 145254510133 is 331015452541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331015452541 = 59 ⋅5610431399.

It can be written as a sum of positive squares in 2 ways, for example, as 38953732689 + 106300777444 = 197367^2 + 326038^2 .

It is a cyclic number.

It is not a de Polignac number, because 145254510133 - 2¹ = 145254510131 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 (145254510131) 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, 4272191458 + ... + 4272191491.

It is an arithmetic number, because the mean of its divisors is an integer number (38449723275).

Almost surely, 2^145254510133 is an apocalyptic number.

It is an amenable number.

145254510133 is a deficient number, since it is larger than the sum of its proper divisors (8544382967).

145254510133 is an equidigital number, since it uses as much as digits as its factorization.

145254510133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8544382966.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 145254510133 its reverse (331015452541), we get a palindrome (476269962674).

The spelling of 145254510133 in words is "one hundred forty-five billion, two hundred fifty-four million, five hundred ten thousand, one hundred thirty-three".