235273681 has 4 divisors (see below), whose sum is σ = 240279552. Its totient is φ = 230267812.

The previous prime is 235273679. The next prime is 235273699. The reversal of 235273681 is 186372532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 235273681 - 2¹ = 235273679 is a prime.

It is a super-2 number, since 2×235273681² = 110707409942579522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 235273681.

It is not an unprimeable number, because it can be changed into a prime (235273631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502865 + ... + 2502958.

It is an arithmetic number, because the mean of its divisors is an integer number (60069888).

Almost surely, 2^235273681 is an apocalyptic number.

It is an amenable number.

235273681 is a deficient number, since it is larger than the sum of its proper divisors (5005871).

235273681 is an equidigital number, since it uses as much as digits as its factorization.

235273681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005870.

The product of its digits is 60480, while the sum is 37.

The square root of 235273681 is about 15338.6336092887. The cubic root of 235273681 is about 617.3400447861.

The spelling of 235273681 in words is "two hundred thirty-five million, two hundred seventy-three thousand, six hundred eighty-one".