145216829 has 8 divisors (see below), whose sum is σ = 153083040. Its totient is φ = 137372976.

The previous prime is 145216817. The next prime is 145216861. The reversal of 145216829 is 928612541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145216829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145216792 and 145216801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145216879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8714 + ... + 19140.

It is an arithmetic number, because the mean of its divisors is an integer number (19135380).

Almost surely, 2^145216829 is an apocalyptic number.

145216829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145216829 is a deficient number, since it is larger than the sum of its proper divisors (7866211).

145216829 is a wasteful number, since it uses less digits than its factorization.

145216829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11179.

The product of its digits is 34560, while the sum is 38.

The square root of 145216829 is about 12050.5945496477. The cubic root of 145216829 is about 525.6205258397.

It can be divided in two parts, 1452 and 16829, that added together give a palindrome (18281).

The spelling of 145216829 in words is "one hundred forty-five million, two hundred sixteen thousand, eight hundred twenty-nine".