254098021 has 4 divisors (see below), whose sum is σ = 254501344. Its totient is φ = 253694700.

The previous prime is 254097973. The next prime is 254098069. The reversal of 254098021 is 120890452.

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 an interprime number because it is at equal distance from previous prime (254097973) and next prime (254098069).

It is a cyclic number.

It is not a de Polignac number, because 254098021 - 2⁹ = 254097509 is a prime.

It is a super-2 number, since 2×254098021² = 129131608552232882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254098081) 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, 200715 + ... + 201976.

It is an arithmetic number, because the mean of its divisors is an integer number (63625336).

Almost surely, 2^254098021 is an apocalyptic number.

It is an amenable number.

254098021 is a deficient number, since it is larger than the sum of its proper divisors (403323).

254098021 is an equidigital number, since it uses as much as digits as its factorization.

254098021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403322.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 254098021 is about 15940.4523461538. The cubic root of 254098021 is about 633.3840084721.

The spelling of 254098021 in words is "two hundred fifty-four million, ninety-eight thousand, twenty-one".