135297023 has 2 divisors, whose sum is σ = 135297024. Its totient is φ = 135297022.

The previous prime is 135296983. The next prime is 135297031. The reversal of 135297023 is 320792531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135297023 - 2¹⁶ = 135231487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135297223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67648511 + 67648512.

It is an arithmetic number, because the mean of its divisors is an integer number (67648512).

Almost surely, 2^135297023 is an apocalyptic number.

135297023 is a deficient number, since it is larger than the sum of its proper divisors (1).

135297023 is an equidigital number, since it uses as much as digits as its factorization.

135297023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 135297023 is about 11631.7248505972. The cubic root of 135297023 is about 513.3687322621.

The spelling of 135297023 in words is "one hundred thirty-five million, two hundred ninety-seven thousand, twenty-three".