254986969 has 2 divisors, whose sum is σ = 254986970. Its totient is φ = 254986968.

The previous prime is 254986951. The next prime is 254986981. The reversal of 254986969 is 969689452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133171600 + 121815369 = 11540^2 + 11037^2 .

It is a cyclic number.

It is not a de Polignac number, because 254986969 - 2⁷ = 254986841 is a prime.

It is a super-2 number, since 2×254986969² = 130036708719613922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254986909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127493484 + 127493485.

It is an arithmetic number, because the mean of its divisors is an integer number (127493485).

Almost surely, 2^254986969 is an apocalyptic number.

It is an amenable number.

254986969 is a deficient number, since it is larger than the sum of its proper divisors (1).

254986969 is an equidigital number, since it uses as much as digits as its factorization.

254986969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 58.

The square root of 254986969 is about 15968.3114010217. The cubic root of 254986969 is about 634.1217685486.

The spelling of 254986969 in words is "two hundred fifty-four million, nine hundred eighty-six thousand, nine hundred sixty-nine".