149145273 has 16 divisors (see below), whose sum is σ = 223621440. Its totient is φ = 98230752.

The previous prime is 149145259. The next prime is 149145313. The reversal of 149145273 is 372541941.

It is not a de Polignac number, because 149145273 - 2⁴ = 149145257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149145223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31036 + ... + 35517.

It is an arithmetic number, because the mean of its divisors is an integer number (13976340).

Almost surely, 2^149145273 is an apocalyptic number.

It is an amenable number.

149145273 is a deficient number, since it is larger than the sum of its proper divisors (74476167).

149145273 is an equidigital number, since it uses as much as digits as its factorization.

149145273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66645 (or 66639 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 149145273 is about 12212.5047799377. The cubic root of 149145273 is about 530.3181583250.

It can be divided in two parts, 1491 and 45273, that added together give a palindrome (46764).

The spelling of 149145273 in words is "one hundred forty-nine million, one hundred forty-five thousand, two hundred seventy-three".