145519853 has 4 divisors (see below), whose sum is σ = 149452860. Its totient is φ = 141586848.

The previous prime is 145519819. The next prime is 145519867. The reversal of 145519853 is 358915541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97259044 + 48260809 = 9862^2 + 6947^2 .

It is a cyclic number.

It is not a de Polignac number, because 145519853 - 2⁶ = 145519789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145519853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145519453) 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, 1966448 + ... + 1966521.

It is an arithmetic number, because the mean of its divisors is an integer number (37363215).

Almost surely, 2^145519853 is an apocalyptic number.

It is an amenable number.

145519853 is a deficient number, since it is larger than the sum of its proper divisors (3933007).

145519853 is an equidigital number, since it uses as much as digits as its factorization.

145519853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933006.

The product of its digits is 108000, while the sum is 41.

The square root of 145519853 is about 12063.1609870713. The cubic root of 145519853 is about 525.9858760008.

The spelling of 145519853 in words is "one hundred forty-five million, five hundred nineteen thousand, eight hundred fifty-three".