146158226 has 4 divisors (see below), whose sum is σ = 219237342. Its totient is φ = 73079112.

The previous prime is 146158217. The next prime is 146158237. The reversal of 146158226 is 622851641.

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., 82174225 + 63984001 = 9065^2 + 7999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36539555 + ... + 36539558.

Almost surely, 2^146158226 is an apocalyptic number.

146158226 is a deficient number, since it is larger than the sum of its proper divisors (73079116).

146158226 is an equidigital number, since it uses as much as digits as its factorization.

146158226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73079115.

The product of its digits is 23040, while the sum is 35.

The square root of 146158226 is about 12089.5916390919. The cubic root of 146158226 is about 526.7538934912.

The spelling of 146158226 in words is "one hundred forty-six million, one hundred fifty-eight thousand, two hundred twenty-six".