145958122 has 4 divisors (see below), whose sum is σ = 218937186. Its totient is φ = 72979060.

The previous prime is 145958119. The next prime is 145958123. The reversal of 145958122 is 221859541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 111957561 + 34000561 = 10581^2 + 5831^2 .

It is not an unprimeable number, because it can be changed into a prime (145958123) by changing a digit.

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 as a sum of consecutive naturals, namely, 36489529 + ... + 36489532.

Almost surely, 2^145958122 is an apocalyptic number.

145958122 is a deficient number, since it is larger than the sum of its proper divisors (72979064).

145958122 is an equidigital number, since it uses as much as digits as its factorization.

145958122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72979063.

The product of its digits is 28800, while the sum is 37.

The square root of 145958122 is about 12081.3129253405. The cubic root of 145958122 is about 526.5133922575.

The spelling of 145958122 in words is "one hundred forty-five million, nine hundred fifty-eight thousand, one hundred twenty-two".