145117833 has 32 divisors (see below), whose sum is σ = 233066496. Its totient is φ = 78522048.

The previous prime is 145117813. The next prime is 145117837. The reversal of 145117833 is 338711541.

It is not a de Polignac number, because 145117833 - 2²⁰ = 144069257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145117794 and 145117803.

It is not an unprimeable number, because it can be changed into a prime (145117837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48291 + ... + 51207.

It is an arithmetic number, because the mean of its divisors is an integer number (7283328).

Almost surely, 2^145117833 is an apocalyptic number.

It is an amenable number.

145117833 is a deficient number, since it is larger than the sum of its proper divisors (87948663).

145117833 is a wasteful number, since it uses less digits than its factorization.

145117833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053.

The product of its digits is 10080, while the sum is 33.

The square root of 145117833 is about 12046.4863341972. The cubic root of 145117833 is about 525.5010581477.

It can be divided in two parts, 1451178 and 33, that multiplied together give a palindrome (47888874).

The spelling of 145117833 in words is "one hundred forty-five million, one hundred seventeen thousand, eight hundred thirty-three".