1293196291 has 8 divisors (see below), whose sum is σ = 1297557504. Its totient is φ = 1288843080.

The previous prime is 1293196243. The next prime is 1293196327. The reversal of 1293196291 is 1926913921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1293196291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1293196691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532506 + ... + 534928.

It is an arithmetic number, because the mean of its divisors is an integer number (162194688).

Almost surely, 2^1293196291 is an apocalyptic number.

1293196291 is a deficient number, since it is larger than the sum of its proper divisors (4361213).

1293196291 is a wasteful number, since it uses less digits than its factorization.

1293196291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001.

The product of its digits is 52488, while the sum is 43.

The square root of 1293196291 is about 35961.0385139250. The cubic root of 1293196291 is about 1089.4855724202.

The spelling of 1293196291 in words is "one billion, two hundred ninety-three million, one hundred ninety-six thousand, two hundred ninety-one".