145225263 has 4 divisors (see below), whose sum is σ = 193633688. Its totient is φ = 96816840.

The previous prime is 145225231. The next prime is 145225273. The reversal of 145225263 is 362522541.

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

It is not a de Polignac number, because 145225263 - 2⁵ = 145225231 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 145225263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145225273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24204208 + ... + 24204213.

It is an arithmetic number, because the mean of its divisors is an integer number (48408422).

Almost surely, 2^145225263 is an apocalyptic number.

145225263 is a deficient number, since it is larger than the sum of its proper divisors (48408425).

145225263 is an equidigital number, since it uses as much as digits as its factorization.

145225263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48408424.

The product of its digits is 14400, while the sum is 30.

The square root of 145225263 is about 12050.9444858069. The cubic root of 145225263 is about 525.6307014227.

The spelling of 145225263 in words is "one hundred forty-five million, two hundred twenty-five thousand, two hundred sixty-three".