145205516233 has 4 divisors (see below), whose sum is σ = 146954980368. Its totient is φ = 143456052100.

The previous prime is 145205516189. The next prime is 145205516257. The reversal of 145205516233 is 332615502541.

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 a de Polignac number, because none of the positive numbers 2^k-145205516233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145205516192 and 145205516201.

It is not an unprimeable number, because it can be changed into a prime (145205516273) 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, 874731943 + ... + 874732108.

It is an arithmetic number, because the mean of its divisors is an integer number (36738745092).

Almost surely, 2^145205516233 is an apocalyptic number.

It is an amenable number.

145205516233 is a deficient number, since it is larger than the sum of its proper divisors (1749464135).

145205516233 is an equidigital number, since it uses as much as digits as its factorization.

145205516233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749464134.

The product of its (nonzero) digits is 108000, while the sum is 37.

It can be divided in two parts, 14520551 and 6233, that added together give a cube (14526784 = 244³).

The spelling of 145205516233 in words is "one hundred forty-five billion, two hundred five million, five hundred sixteen thousand, two hundred thirty-three".