1259699923 has 2 divisors, whose sum is σ = 1259699924. Its totient is φ = 1259699922.

The previous prime is 1259699893. The next prime is 1259699933. The reversal of 1259699923 is 3299969521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1259699923 - 2¹³ = 1259691731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1259699933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629849961 + 629849962.

It is an arithmetic number, because the mean of its divisors is an integer number (629849962).

Almost surely, 2^1259699923 is an apocalyptic number.

1259699923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1259699923 is an equidigital number, since it uses as much as digits as its factorization.

1259699923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2361960, while the sum is 55.

The square root of 1259699923 is about 35492.2515910163. The cubic root of 1259699923 is about 1079.9965486287.

The spelling of 1259699923 in words is "one billion, two hundred fifty-nine million, six hundred ninety-nine thousand, nine hundred twenty-three".