135192623 has 2 divisors, whose sum is σ = 135192624. Its totient is φ = 135192622.

The previous prime is 135192599. The next prime is 135192637. The reversal of 135192623 is 326291531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135192623 - 2¹² = 135188527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135192623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135192223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67596311 + 67596312.

It is an arithmetic number, because the mean of its divisors is an integer number (67596312).

Almost surely, 2^135192623 is an apocalyptic number.

135192623 is a deficient number, since it is larger than the sum of its proper divisors (1).

135192623 is an equidigital number, since it uses as much as digits as its factorization.

135192623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 135192623 is about 11627.2362580280. The cubic root of 135192623 is about 513.2366537536.

The spelling of 135192623 in words is "one hundred thirty-five million, one hundred ninety-two thousand, six hundred twenty-three".