1293293812 has 6 divisors (see below), whose sum is σ = 2263264178. Its totient is φ = 646646904.

The previous prime is 1293293809. The next prime is 1293293839. The reversal of 1293293812 is 2183923921.

It can be written as a sum of positive squares in only one way, i.e., 1199513956 + 93779856 = 34634^2 + 9684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161661723 + ... + 161661730.

Almost surely, 2^1293293812 is an apocalyptic number.

It is an amenable number.

1293293812 is a deficient number, since it is larger than the sum of its proper divisors (969970366).

1293293812 is a wasteful number, since it uses less digits than its factorization.

1293293812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323323457 (or 323323455 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 1293293812 is about 35962.3944141655. The cubic root of 1293293812 is about 1089.5129580673.

The spelling of 1293293812 in words is "one billion, two hundred ninety-three million, two hundred ninety-three thousand, eight hundred twelve".