135423502 has 4 divisors (see below), whose sum is σ = 203135256. Its totient is φ = 67711750.

The previous prime is 135423493. The next prime is 135423523. The reversal of 135423502 is 205324531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 205324531 = 173 ⋅1186847.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33855874 + ... + 33855877.

It is an arithmetic number, because the mean of its divisors is an integer number (50783814).

Almost surely, 2^135423502 is an apocalyptic number.

135423502 is a deficient number, since it is larger than the sum of its proper divisors (67711754).

135423502 is an equidigital number, since it uses as much as digits as its factorization.

135423502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67711753.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 135423502 is about 11637.1603924669. The cubic root of 135423502 is about 513.5286523651.

The spelling of 135423502 in words is "one hundred thirty-five million, four hundred twenty-three thousand, five hundred two".