35139823 has 2 divisors, whose sum is σ = 35139824. Its totient is φ = 35139822.

The previous prime is 35139809. The next prime is 35139859. The reversal of 35139823 is 32893153.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35139823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35139623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17569911 + 17569912.

It is an arithmetic number, because the mean of its divisors is an integer number (17569912).

Almost surely, 2^35139823 is an apocalyptic number.

35139823 is a deficient number, since it is larger than the sum of its proper divisors (1).

35139823 is an equidigital number, since it uses as much as digits as its factorization.

35139823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 35139823 is about 5927.8852046915. The cubic root of 35139823 is about 327.5416430158.

The spelling of 35139823 in words is "thirty-five million, one hundred thirty-nine thousand, eight hundred twenty-three".