145028819 has 16 divisors (see below), whose sum is σ = 170714880. Its totient is φ = 121927680.

The previous prime is 145028813. The next prime is 145028827. The reversal of 145028819 is 918820541.

It is a cyclic number.

It is not a de Polignac number, because 145028819 - 2⁸ = 145028563 is a prime.

It is a super-2 number, since 2×145028819² = 42066716681069522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145028813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3734 + ... + 17435.

It is an arithmetic number, because the mean of its divisors is an integer number (10669680).

Almost surely, 2^145028819 is an apocalyptic number.

145028819 is a deficient number, since it is larger than the sum of its proper divisors (25686061).

145028819 is a wasteful number, since it uses less digits than its factorization.

145028819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21230.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 145028819 is about 12042.7911631814. The cubic root of 145028819 is about 525.3935902653.

The spelling of 145028819 in words is "one hundred forty-five million, twenty-eight thousand, eight hundred nineteen".