145234066 has 4 divisors (see below), whose sum is σ = 217851102. Its totient is φ = 72617032.

The previous prime is 145234057. The next prime is 145234069. The reversal of 145234066 is 660432541.

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., 121992025 + 23242041 = 11045^2 + 4821^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (145234069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36308515 + ... + 36308518.

Almost surely, 2^145234066 is an apocalyptic number.

145234066 is a deficient number, since it is larger than the sum of its proper divisors (72617036).

145234066 is an equidigital number, since it uses as much as digits as its factorization.

145234066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72617035.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 145234066 is about 12051.3097213539. The cubic root of 145234066 is about 525.6413217823.

The spelling of 145234066 in words is "one hundred forty-five million, two hundred thirty-four thousand, sixty-six".