254033921 has 2 divisors, whose sum is σ = 254033922. Its totient is φ = 254033920.

The previous prime is 254033893. The next prime is 254033957. The reversal of 254033921 is 129330452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245360896 + 8673025 = 15664^2 + 2945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254033921 is a prime.

It is not a weakly prime, because it can be changed into another prime (254033821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127016960 + 127016961.

It is an arithmetic number, because the mean of its divisors is an integer number (127016961).

It is a Proth number, since it is equal to 15505 ⋅ 2¹⁴ + 1 and 15505 < 2¹⁴.

Almost surely, 2^254033921 is an apocalyptic number.

It is an amenable number.

254033921 is a deficient number, since it is larger than the sum of its proper divisors (1).

254033921 is an equidigital number, since it uses as much as digits as its factorization.

254033921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 254033921 is about 15938.4416113998. The cubic root of 254033921 is about 633.3307438183.

The spelling of 254033921 in words is "two hundred fifty-four million, thirty-three thousand, nine hundred twenty-one".