254021023 has 4 divisors (see below), whose sum is σ = 255351168. Its totient is φ = 252690880.

The previous prime is 254020999. The next prime is 254021057. The reversal of 254021023 is 320120452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 254021023 - 2²¹ = 251923871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254022023) 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, 664786 + ... + 665167.

It is an arithmetic number, because the mean of its divisors is an integer number (63837792).

Almost surely, 2^254021023 is an apocalyptic number.

254021023 is a deficient number, since it is larger than the sum of its proper divisors (1330145).

254021023 is a wasteful number, since it uses less digits than its factorization.

254021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330144.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 254021023 is about 15938.0369870320. The cubic root of 254021023 is about 633.3200249897.

Adding to 254021023 its reverse (320120452), we get a palindrome (574141475).

The spelling of 254021023 in words is "two hundred fifty-four million, twenty-one thousand, twenty-three".