269990251 has 2 divisors, whose sum is σ = 269990252. Its totient is φ = 269990250.

The previous prime is 269990197. The next prime is 269990263. The reversal of 269990251 is 152099962.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 269990251 - 2²³ = 261601643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 269990198 and 269990207.

It is not a weakly prime, because it can be changed into another prime (269990051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134995125 + 134995126.

It is an arithmetic number, because the mean of its divisors is an integer number (134995126).

Almost surely, 2^269990251 is an apocalyptic number.

269990251 is a deficient number, since it is larger than the sum of its proper divisors (1).

269990251 is an equidigital number, since it uses as much as digits as its factorization.

269990251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 269990251 is about 16431.3800698541. The cubic root of 269990251 is about 646.3226278108.

The spelling of 269990251 in words is "two hundred sixty-nine million, nine hundred ninety thousand, two hundred fifty-one".