235139479 has 2 divisors, whose sum is σ = 235139480. Its totient is φ = 235139478.

The previous prime is 235139467. The next prime is 235139501. The reversal of 235139479 is 974931532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 235139479 - 2¹³ = 235131287 is a prime.

It is a super-3 number, since 3×235139479³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235199479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117569739 + 117569740.

It is an arithmetic number, because the mean of its divisors is an integer number (117569740).

Almost surely, 2^235139479 is an apocalyptic number.

235139479 is a deficient number, since it is larger than the sum of its proper divisors (1).

235139479 is an equidigital number, since it uses as much as digits as its factorization.

235139479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 235139479 is about 15334.2583452869. The cubic root of 235139479 is about 617.2226438855. Note that the first 3 decimals are identical.

The spelling of 235139479 in words is "two hundred thirty-five million, one hundred thirty-nine thousand, four hundred seventy-nine".