145820459 has 8 divisors (see below), whose sum is σ = 155346240. Its totient is φ = 136479816.

The previous prime is 145820453. The next prime is 145820531. The reversal of 145820459 is 954028541.

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

It is a cyclic number.

It is not a de Polignac number, because 145820459 - 2⁴ = 145820443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145820453) 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, 44657 + ... + 47810.

It is an arithmetic number, because the mean of its divisors is an integer number (19418280).

Almost surely, 2^145820459 is an apocalyptic number.

145820459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145820459 is a deficient number, since it is larger than the sum of its proper divisors (9525781).

145820459 is an equidigital number, since it uses as much as digits as its factorization.

145820459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92569.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 145820459 is about 12075.6142286842. The cubic root of 145820459 is about 526.3478100310.

The spelling of 145820459 in words is "one hundred forty-five million, eight hundred twenty thousand, four hundred fifty-nine".