145786253 has 8 divisors (see below), whose sum is σ = 150039960. Its totient is φ = 141549120.

The previous prime is 145786243. The next prime is 145786313. The reversal of 145786253 is 352687541.

It can be written as a sum of positive squares in 4 ways, for example, as 50879689 + 94906564 = 7133^2 + 9742^2 .

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 145786253 - 2¹⁰ = 145785229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145786253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145786243) 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 7 ways as a sum of consecutive naturals, for example, 14963 + ... + 22703.

It is an arithmetic number, because the mean of its divisors is an integer number (18754995).

Almost surely, 2^145786253 is an apocalyptic number.

It is an amenable number.

145786253 is a deficient number, since it is larger than the sum of its proper divisors (4253707).

145786253 is an equidigital number, since it uses as much as digits as its factorization.

145786253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8287.

The product of its digits is 201600, while the sum is 41.

The square root of 145786253 is about 12074.1978201452. The cubic root of 145786253 is about 526.3066506004.

The spelling of 145786253 in words is "one hundred forty-five million, seven hundred eighty-six thousand, two hundred fifty-three".