153020249 has 2 divisors, whose sum is σ = 153020250. Its totient is φ = 153020248.

The previous prime is 153020239. The next prime is 153020261. The reversal of 153020249 is 942020351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103388224 + 49632025 = 10168^2 + 7045^2 .

It is an emirp because it is prime and its reverse (942020351) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153020249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (153020209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76510124 + 76510125.

It is an arithmetic number, because the mean of its divisors is an integer number (76510125).

Almost surely, 2^153020249 is an apocalyptic number.

It is an amenable number.

153020249 is a deficient number, since it is larger than the sum of its proper divisors (1).

153020249 is an equidigital number, since it uses as much as digits as its factorization.

153020249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 153020249 is about 12370.1353670847. The cubic root of 153020249 is about 534.8717181586.

The spelling of 153020249 in words is "one hundred fifty-three million, twenty thousand, two hundred forty-nine".