145216255133 has 4 divisors (see below), whose sum is σ = 145247945568. Its totient is φ = 145184564700.

The previous prime is 145216255123. The next prime is 145216255183. The reversal of 145216255133 is 331552612541.

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 145216255133 - 2⁶ = 145216255069 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 (145216255123) 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, 15838343 + ... + 15847508.

It is an arithmetic number, because the mean of its divisors is an integer number (36311986392).

Almost surely, 2^145216255133 is an apocalyptic number.

It is an amenable number.

145216255133 is a deficient number, since it is larger than the sum of its proper divisors (31690435).

145216255133 is an equidigital number, since it uses as much as digits as its factorization.

145216255133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31690434.

The product of its digits is 108000, while the sum is 38.

Adding to 145216255133 its reverse (331552612541), we get a palindrome (476768867674).

The spelling of 145216255133 in words is "one hundred forty-five billion, two hundred sixteen million, two hundred fifty-five thousand, one hundred thirty-three".