147616649 has 2 divisors, whose sum is σ = 147616650. Its totient is φ = 147616648.

The previous prime is 147616639. The next prime is 147616657. The reversal of 147616649 is 946616741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95199049 + 52417600 = 9757^2 + 7240^2 .

It is a cyclic number.

It is not a de Polignac number, because 147616649 - 2⁸ = 147616393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (147616619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73808324 + 73808325.

It is an arithmetic number, because the mean of its divisors is an integer number (73808325).

Almost surely, 2^147616649 is an apocalyptic number.

It is an amenable number.

147616649 is a deficient number, since it is larger than the sum of its proper divisors (1).

147616649 is an equidigital number, since it uses as much as digits as its factorization.

147616649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 147616649 is about 12149.7592157211. The cubic root of 147616649 is about 528.5001490267.

The spelling of 147616649 in words is "one hundred forty-seven million, six hundred sixteen thousand, six hundred forty-nine".