153421439 has 2 divisors, whose sum is σ = 153421440. Its totient is φ = 153421438.

The previous prime is 153421423. The next prime is 153421451. The reversal of 153421439 is 934124351.

153421439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 153421439 - 2⁴ = 153421423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153421469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76710719 + 76710720.

It is an arithmetic number, because the mean of its divisors is an integer number (76710720).

Almost surely, 2^153421439 is an apocalyptic number.

153421439 is a deficient number, since it is larger than the sum of its proper divisors (1).

153421439 is an equidigital number, since it uses as much as digits as its factorization.

153421439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 153421439 is about 12386.3408236654. The cubic root of 153421439 is about 535.3387542205.

The spelling of 153421439 in words is "one hundred fifty-three million, four hundred twenty-one thousand, four hundred thirty-nine".