1259668291 has 32 divisors (see below), whose sum is σ = 1532510208. Its totient is φ = 1012677120.

The previous prime is 1259668271. The next prime is 1259668309. The reversal of 1259668291 is 1928669521.

It is a de Polignac number, because none of the positive numbers 2^k-1259668291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1259668211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1151941 + ... + 1153033.

It is an arithmetic number, because the mean of its divisors is an integer number (47890944).

Almost surely, 2^1259668291 is an apocalyptic number.

1259668291 is a deficient number, since it is larger than the sum of its proper divisors (272841917).

1259668291 is a wasteful number, since it uses less digits than its factorization.

1259668291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291.

The product of its digits is 466560, while the sum is 49.

The square root of 1259668291 is about 35491.8059698291. The cubic root of 1259668291 is about 1079.9875087147.

The spelling of 1259668291 in words is "one billion, two hundred fifty-nine million, six hundred sixty-eight thousand, two hundred ninety-one".