145185422 has 16 divisors (see below), whose sum is σ = 229488000. Its totient is φ = 68697720.

The previous prime is 145185421. The next prime is 145185427. The reversal of 145185422 is 224581541.

145185422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145185422² = 42157613522636168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145185421) 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, 51797 + ... + 54527.

It is an arithmetic number, because the mean of its divisors is an integer number (14343000).

Almost surely, 2^145185422 is an apocalyptic number.

145185422 is a deficient number, since it is larger than the sum of its proper divisors (84302578).

145185422 is a wasteful number, since it uses less digits than its factorization.

145185422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151.

The product of its digits is 12800, while the sum is 32.

The square root of 145185422 is about 12049.2913484570. The cubic root of 145185422 is about 525.5826299699.

The spelling of 145185422 in words is "one hundred forty-five million, one hundred eighty-five thousand, four hundred twenty-two".