145268259 has 4 divisors (see below), whose sum is σ = 193691016. Its totient is φ = 96845504.

The previous prime is 145268257. The next prime is 145268303. The reversal of 145268259 is 952862541.

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

It is a cyclic number.

It is not a de Polignac number, because 145268259 - 2¹ = 145268257 is a prime.

It is a super-2 number, since 2×145268259² = 42205734145782162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145268259.

It is not an unprimeable number, because it can be changed into a prime (145268251) 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, 24211374 + ... + 24211379.

It is an arithmetic number, because the mean of its divisors is an integer number (48422754).

Almost surely, 2^145268259 is an apocalyptic number.

145268259 is a deficient number, since it is larger than the sum of its proper divisors (48422757).

145268259 is an equidigital number, since it uses as much as digits as its factorization.

145268259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48422756.

The product of its digits is 172800, while the sum is 42.

The square root of 145268259 is about 12052.7282803521. The cubic root of 145268259 is about 525.6825697803.

The spelling of 145268259 in words is "one hundred forty-five million, two hundred sixty-eight thousand, two hundred fifty-nine".