135051223 has 2 divisors, whose sum is σ = 135051224. Its totient is φ = 135051222.

The previous prime is 135051197. The next prime is 135051233. The reversal of 135051223 is 322150531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135051223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135051194 and 135051203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135051233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67525611 + 67525612.

It is an arithmetic number, because the mean of its divisors is an integer number (67525612).

Almost surely, 2^135051223 is an apocalyptic number.

135051223 is a deficient number, since it is larger than the sum of its proper divisors (1).

135051223 is an equidigital number, since it uses as much as digits as its factorization.

135051223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 135051223 is about 11621.1541165239. The cubic root of 135051223 is about 513.0576573528.

The spelling of 135051223 in words is "one hundred thirty-five million, fifty-one thousand, two hundred twenty-three".