149768653 has 2 divisors, whose sum is σ = 149768654. Its totient is φ = 149768652.

The previous prime is 149768627. The next prime is 149768677. The reversal of 149768653 is 356867941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149768644 + 9 = 12238^2 + 3^2 .

It is an emirp because it is prime and its reverse (356867941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149768653 - 2¹³ = 149760461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149768597 and 149768606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149768683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74884326 + 74884327.

It is an arithmetic number, because the mean of its divisors is an integer number (74884327).

Almost surely, 2^149768653 is an apocalyptic number.

It is an amenable number.

149768653 is a deficient number, since it is larger than the sum of its proper divisors (1).

149768653 is an equidigital number, since it uses as much as digits as its factorization.

149768653 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 149768653 is about 12238.0003677071. Note that the first 3 decimals coincide. The cubic root of 149768653 is about 531.0559852921.

The spelling of 149768653 in words is "one hundred forty-nine million, seven hundred sixty-eight thousand, six hundred fifty-three".