153449 has 2 divisors, whose sum is σ = 153450. Its totient is φ = 153448.

The previous prime is 153443. The next prime is 153457. The reversal of 153449 is 944351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85849 + 67600 = 293^2 + 260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 153449.

It is not a weakly prime, because it can be changed into another prime (153443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76724 + 76725.

It is an arithmetic number, because the mean of its divisors is an integer number (76725).

2¹⁵³⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

153449 is a deficient number, since it is larger than the sum of its proper divisors (1).

153449 is an equidigital number, since it uses as much as digits as its factorization.

153449 is an evil number, because the sum of its binary digits is even.

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

The square root of 153449 is about 391.7256693146. The cubic root of 153449 is about 53.5370808819.

The spelling of 153449 in words is "one hundred fifty-three thousand, four hundred forty-nine".