153240273 has 12 divisors (see below), whose sum is σ = 227329908. Its totient is φ = 99398880.

The previous prime is 153240271. The next prime is 153240281. The reversal of 153240273 is 372042351.

153240273 is a `hidden beast` number, since 153 + 240 + 273 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 133818624 + 19421649 = 11568^2 + 4407^2 .

It is not a de Polignac number, because 153240273 - 2¹ = 153240271 is a prime.

It is a super-2 number, since 2×153240273² = 46965162538229058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153240271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229758 + ... + 230423.

It is an arithmetic number, because the mean of its divisors is an integer number (18944159).

Almost surely, 2^153240273 is an apocalyptic number.

It is an amenable number.

153240273 is a deficient number, since it is larger than the sum of its proper divisors (74089635).

153240273 is a wasteful number, since it uses less digits than its factorization.

153240273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460224 (or 460221 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 153240273 is about 12379.0255270760. The cubic root of 153240273 is about 535.1279549540.

The spelling of 153240273 in words is "one hundred fifty-three million, two hundred forty thousand, two hundred seventy-three".