254220971 has 2 divisors, whose sum is σ = 254220972. Its totient is φ = 254220970.

The previous prime is 254220943. The next prime is 254220983. The reversal of 254220971 is 179022452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254220971 is a prime.

It is not a weakly prime, because it can be changed into another prime (254220371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127110485 + 127110486.

It is an arithmetic number, because the mean of its divisors is an integer number (127110486).

Almost surely, 2^254220971 is an apocalyptic number.

254220971 is a deficient number, since it is larger than the sum of its proper divisors (1).

254220971 is an equidigital number, since it uses as much as digits as its factorization.

254220971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 254220971 is about 15944.3084202483. The cubic root of 254220971 is about 633.4861501661.

The spelling of 254220971 in words is "two hundred fifty-four million, two hundred twenty thousand, nine hundred seventy-one".