1214981461 has 2 divisors, whose sum is σ = 1214981462. Its totient is φ = 1214981460.

The previous prime is 1214981459. The next prime is 1214981489. The reversal of 1214981461 is 1641894121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1148803236 + 66178225 = 33894^2 + 8135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214981461 - 2¹ = 1214981459 is a prime.

Together with 1214981459, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1214981461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214981401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607490730 + 607490731.

It is an arithmetic number, because the mean of its divisors is an integer number (607490731).

Almost surely, 2^1214981461 is an apocalyptic number.

It is an amenable number.

1214981461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214981461 is an equidigital number, since it uses as much as digits as its factorization.

1214981461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 37.

The square root of 1214981461 is about 34856.5841843403. The cubic root of 1214981461 is about 1067.0625640565.

The spelling of 1214981461 in words is "one billion, two hundred fourteen million, nine hundred eighty-one thousand, four hundred sixty-one".