1202461649 has 2 divisors, whose sum is σ = 1202461650. Its totient is φ = 1202461648.

The previous prime is 1202461639. The next prime is 1202461651. The reversal of 1202461649 is 9461642021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678967249 + 523494400 = 26057^2 + 22880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202461649 is a prime.

Together with 1202461651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1202461619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601230824 + 601230825.

It is an arithmetic number, because the mean of its divisors is an integer number (601230825).

Almost surely, 2^1202461649 is an apocalyptic number.

It is an amenable number.

1202461649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202461649 is an equidigital number, since it uses as much as digits as its factorization.

1202461649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1202461649 is about 34676.5287911002. The cubic root of 1202461649 is about 1063.3847096591.

The spelling of 1202461649 in words is "one billion, two hundred two million, four hundred sixty-one thousand, six hundred forty-nine".