147689653 has 2 divisors, whose sum is σ = 147689654. Its totient is φ = 147689652.

The previous prime is 147689621. The next prime is 147689671. The reversal of 147689653 is 356986741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142993764 + 4695889 = 11958^2 + 2167^2 .

It is an emirp because it is prime and its reverse (356986741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147689653 - 2⁵ = 147689621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147689597 and 147689606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147689683) 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, 73844826 + 73844827.

It is an arithmetic number, because the mean of its divisors is an integer number (73844827).

Almost surely, 2^147689653 is an apocalyptic number.

It is an amenable number.

147689653 is a deficient number, since it is larger than the sum of its proper divisors (1).

147689653 is an equidigital number, since it uses as much as digits as its factorization.

147689653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 147689653 is about 12152.7631837373. The cubic root of 147689653 is about 528.5872581401.

The spelling of 147689653 in words is "one hundred forty-seven million, six hundred eighty-nine thousand, six hundred fifty-three".