1212952493 has 2 divisors, whose sum is σ = 1212952494. Its totient is φ = 1212952492.

The previous prime is 1212952483. The next prime is 1212952501. The reversal of 1212952493 is 3942592121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837639364 + 375313129 = 28942^2 + 19373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212952493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212952483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606476246 + 606476247.

It is an arithmetic number, because the mean of its divisors is an integer number (606476247).

Almost surely, 2^1212952493 is an apocalyptic number.

It is an amenable number.

1212952493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212952493 is an equidigital number, since it uses as much as digits as its factorization.

1212952493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 1212952493 is about 34827.4675077014. The cubic root of 1212952493 is about 1066.4682498884.

The spelling of 1212952493 in words is "one billion, two hundred twelve million, nine hundred fifty-two thousand, four hundred ninety-three".