145858253 has 8 divisors (see below), whose sum is σ = 149020800. Its totient is φ = 142728768.

The previous prime is 145858201. The next prime is 145858289. The reversal of 145858253 is 352858541.

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 145858253 - 2²⁰ = 144809677 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 145858253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145858553) 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, 758 + ... + 17096.

It is an arithmetic number, because the mean of its divisors is an integer number (18627600).

Almost surely, 2^145858253 is an apocalyptic number.

It is an amenable number.

145858253 is a deficient number, since it is larger than the sum of its proper divisors (3162547).

145858253 is a wasteful number, since it uses less digits than its factorization.

145858253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16531.

The product of its digits is 192000, while the sum is 41.

The square root of 145858253 is about 12077.1790166413. The cubic root of 145858253 is about 526.3932793497.

The spelling of 145858253 in words is "one hundred forty-five million, eight hundred fifty-eight thousand, two hundred fifty-three".