145222002 has 24 divisors (see below), whose sum is σ = 315394560. Its totient is φ = 48292440.

The previous prime is 145222001. The next prime is 145222009. The reversal of 145222002 is 200222541.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (145222001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1602 + ... + 17117.

It is an arithmetic number, because the mean of its divisors is an integer number (13141440).

Almost surely, 2^145222002 is an apocalyptic number.

145222002 is an abundant number, since it is smaller than the sum of its proper divisors (170172558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145222002 is a wasteful number, since it uses less digits than its factorization.

145222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19158 (or 19155 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 145222002 is about 12050.8091844490. The cubic root of 145222002 is about 525.6267670876.

Adding to 145222002 its reverse (200222541), we get a palindrome (345444543).

The spelling of 145222002 in words is "one hundred forty-five million, two hundred twenty-two thousand, two".