1258763923 has 2 divisors, whose sum is σ = 1258763924. Its totient is φ = 1258763922.

The previous prime is 1258763921. The next prime is 1258763977. The reversal of 1258763923 is 3293678521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1258763923 - 2¹ = 1258763921 is a prime.

It is a super-2 number, since 2×1258763923² = 3168973227692699858, which contains 22 as substring.

Together with 1258763921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1258763921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629381961 + 629381962.

It is an arithmetic number, because the mean of its divisors is an integer number (629381962).

Almost surely, 2^1258763923 is an apocalyptic number.

1258763923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258763923 is an equidigital number, since it uses as much as digits as its factorization.

1258763923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 1258763923 is about 35479.0631640690. The cubic root of 1258763923 is about 1079.7289909280.

The spelling of 1258763923 in words is "one billion, two hundred fifty-eight million, seven hundred sixty-three thousand, nine hundred twenty-three".