145522203 has 16 divisors (see below), whose sum is σ = 201031200. Its totient is φ = 93524480.

The previous prime is 145522183. The next prime is 145522217. The reversal of 145522203 is 302225541.

It is a cyclic number.

It is not a de Polignac number, because 145522203 - 2⁸ = 145521947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145522283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106243 + ... + 107603.

It is an arithmetic number, because the mean of its divisors is an integer number (12564450).

Almost surely, 2^145522203 is an apocalyptic number.

145522203 is a deficient number, since it is larger than the sum of its proper divisors (55508997).

145522203 is a wasteful number, since it uses less digits than its factorization.

145522203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145522203 is about 12063.2583906671. The cubic root of 145522203 is about 525.9887073674.

Adding to 145522203 its reverse (302225541), we get a palindrome (447747744).

The spelling of 145522203 in words is "one hundred forty-five million, five hundred twenty-two thousand, two hundred three".