1213492486 has 4 divisors (see below), whose sum is σ = 1820238732. Its totient is φ = 606746242.

The previous prime is 1213492481. The next prime is 1213492507. The reversal of 1213492486 is 6842943121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6842943121 = 7 ⋅977563303.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213492481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303373120 + ... + 303373123.

It is an arithmetic number, because the mean of its divisors is an integer number (455059683).

Almost surely, 2^1213492486 is an apocalyptic number.

1213492486 is a deficient number, since it is larger than the sum of its proper divisors (606746246).

1213492486 is an equidigital number, since it uses as much as digits as its factorization.

1213492486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606746245.

The product of its digits is 82944, while the sum is 40.

The square root of 1213492486 is about 34835.2190462469. The cubic root of 1213492486 is about 1066.6264863554.

The spelling of 1213492486 in words is "one billion, two hundred thirteen million, four hundred ninety-two thousand, four hundred eighty-six".