239153389 has 2 divisors, whose sum is σ = 239153390. Its totient is φ = 239153388.

The previous prime is 239153377. The next prime is 239153393. The reversal of 239153389 is 983351932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236852100 + 2301289 = 15390^2 + 1517^2 .

It is a cyclic number.

It is not a de Polignac number, because 239153389 - 2¹³ = 239145197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239153689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119576694 + 119576695.

It is an arithmetic number, because the mean of its divisors is an integer number (119576695).

Almost surely, 2^239153389 is an apocalyptic number.

It is an amenable number.

239153389 is a deficient number, since it is larger than the sum of its proper divisors (1).

239153389 is an equidigital number, since it uses as much as digits as its factorization.

239153389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 43.

The square root of 239153389 is about 15464.5849928150. The cubic root of 239153389 is about 620.7149132733.

The spelling of 239153389 in words is "two hundred thirty-nine million, one hundred fifty-three thousand, three hundred eighty-nine".