145222495 has 8 divisors (see below), whose sum is σ = 190109520. Its totient is φ = 105616320.

The previous prime is 145222489. The next prime is 145222499. The reversal of 145222495 is 594222541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145222495 - 2³ = 145222487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145222495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145222499) 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, 1320150 + ... + 1320259.

It is an arithmetic number, because the mean of its divisors is an integer number (23763690).

Almost surely, 2^145222495 is an apocalyptic number.

145222495 is a deficient number, since it is larger than the sum of its proper divisors (44887025).

145222495 is a wasteful number, since it uses less digits than its factorization.

145222495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640425.

The product of its digits is 28800, while the sum is 34.

The square root of 145222495 is about 12050.8296394896. The cubic root of 145222495 is about 525.6273618866.

The spelling of 145222495 in words is "one hundred forty-five million, two hundred twenty-two thousand, four hundred ninety-five".