254021945 has 8 divisors (see below), whose sum is σ = 305142336. Its totient is φ = 203006896.

The previous prime is 254021881. The next prime is 254021947. The reversal of 254021945 is 549120452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254021945 - 2⁶ = 254021881 is a prime.

It is a super-3 number, since 3×254021945³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254021947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20927 + ... + 30756.

It is an arithmetic number, because the mean of its divisors is an integer number (38142792).

Almost surely, 2^254021945 is an apocalyptic number.

It is an amenable number.

254021945 is a deficient number, since it is larger than the sum of its proper divisors (51120391).

254021945 is an equidigital number, since it uses as much as digits as its factorization.

254021945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52671.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 254021945 is about 15938.0659115214. The cubic root of 254021945 is about 633.3207912259.

The spelling of 254021945 in words is "two hundred fifty-four million, twenty-one thousand, nine hundred forty-five".