145154222 has 16 divisors (see below), whose sum is σ = 228331440. Its totient is φ = 69112512.

The previous prime is 145154209. The next prime is 145154237. The reversal of 145154222 is 222451541.

It is a junction number, because it is equal to n+sod(n) for n = 145154191 and 145154200.

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 7 ways as a sum of consecutive naturals, for example, 12908 + ... + 21375.

It is an arithmetic number, because the mean of its divisors is an integer number (14270715).

Almost surely, 2^145154222 is an apocalyptic number.

145154222 is a deficient number, since it is larger than the sum of its proper divisors (83177218).

145154222 is a wasteful number, since it uses less digits than its factorization.

145154222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34387.

The product of its digits is 3200, while the sum is 26.

The square root of 145154222 is about 12047.9965969451. The cubic root of 145154222 is about 525.5449784559.

The spelling of 145154222 in words is "one hundred forty-five million, one hundred fifty-four thousand, two hundred twenty-two".