153849649 has 2 divisors, whose sum is σ = 153849650. Its totient is φ = 153849648.

The previous prime is 153849623. The next prime is 153849719. The reversal of 153849649 is 946948351.

It is a happy number.

153849649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92775424 + 61074225 = 9632^2 + 7815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153849649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (153847649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76924824 + 76924825.

It is an arithmetic number, because the mean of its divisors is an integer number (76924825).

Almost surely, 2^153849649 is an apocalyptic number.

It is an amenable number.

153849649 is a deficient number, since it is larger than the sum of its proper divisors (1).

153849649 is an equidigital number, since it uses as much as digits as its factorization.

153849649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The square root of 153849649 is about 12403.6143522765. The cubic root of 153849649 is about 535.8363475750.

The spelling of 153849649 in words is "one hundred fifty-three million, eight hundred forty-nine thousand, six hundred forty-nine".