145165422 has 32 divisors (see below), whose sum is σ = 297810432. Its totient is φ = 47151104.

The previous prime is 145165417. The next prime is 145165441. The reversal of 145165422 is 224561541.

It is a self number, because there is not a number n which added to its sum of digits gives 145165422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71473 + ... + 73475.

It is an arithmetic number, because the mean of its divisors is an integer number (9306576).

Almost surely, 2^145165422 is an apocalyptic number.

145165422 is an abundant number, since it is smaller than the sum of its proper divisors (152645010).

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

145165422 is a wasteful number, since it uses less digits than its factorization.

145165422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312.

The product of its digits is 9600, while the sum is 30.

The square root of 145165422 is about 12048.4613955476. The cubic root of 145165422 is about 525.5584950047.

The spelling of 145165422 in words is "one hundred forty-five million, one hundred sixty-five thousand, four hundred twenty-two".